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Mercedes-Benz E-Class vs. Mazda MX-5 Miata MPG

Chart is based on 497 fuel economy reports for the Mercedes-Benz E-Class and 287 fuel economy reports for the Mazda MX-5 Miata.

Mercedes-Benz E-Class MPG

Mercedes-Benz E-Class Mercedes-Benz E-Class 2019 18.0 MPG Highway Percentage 2 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2015 27.9 MPG Highway Percentage 90 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2014 17.9 MPG Highway Percentage 75 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2014 39.0 MPG Highway Percentage 98 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2014 43.7 MPG Highway Percentage 73 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2014 25.9 MPG Highway Percentage 45 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2013 34.9 MPG Highway Percentage 83 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2013 20.6 MPG Highway Percentage 30 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2012 21.2 MPG Highway Percentage 20 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2012 21.0 MPG Highway Percentage 50 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2012 27.7 MPG Highway Percentage 55 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2011 37.9 MPG Highway Percentage 40 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2011 19.0 MPG Highway Percentage 60 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2011 22.8 MPG Highway Percentage 30 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2011 15.8 MPG Highway Percentage 0 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2011 23.3 MPG Highway Percentage 65 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2010 17.5 MPG Highway Percentage 42 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2010 22.8 MPG Highway Percentage 49 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2010 19.8 MPG Highway Percentage 51 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2009 29.0 MPG Highway Percentage 35 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2009 29.8 MPG Highway Percentage 85 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2009 32.0 MPG Highway Percentage 0 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2009 24.4 MPG Highway Percentage 55 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008.5 30.8 MPG Highway Percentage 45 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008 34.5 MPG Highway Percentage 66 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008 47.0 MPG Highway Percentage 94 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008 18.5 MPG Highway Percentage 38 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008 20.5 MPG Highway Percentage 61 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2008 20.6 MPG Highway Percentage 30 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2007 34.3 MPG Highway Percentage 65 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2007 19.1 MPG Highway Percentage 55 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2007 22.0 MPG Highway Percentage 50 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2007 19.7 MPG Highway Percentage 10 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2007 23.4 MPG Highway Percentage 53 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2006 19.0 MPG Highway Percentage 20 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2006 33.0 MPG Highway Percentage 51 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2006 16.7 MPG Highway Percentage 45 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2006 24.7 MPG Highway Percentage 57 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2006 21.3 MPG Highway Percentage 44 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2005 33.3 MPG Highway Percentage 55 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2005 19.0 MPG Highway Percentage 40 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2005 21.7 MPG Highway Percentage 50 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2005 22.0 MPG Highway Percentage 29 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2004 17.0 MPG Highway Percentage 50 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2004 19.1 MPG Highway Percentage 67 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2004 25.4 MPG Highway Percentage 50 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2003 22.9 MPG Highway Percentage 46 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2003 19.4 MPG Highway Percentage 19 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2002 22.6 MPG Highway Percentage 80 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2002 22.0 MPG Highway Percentage 31 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2002 24.0 MPG Highway Percentage 15 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2002 26.0 MPG Highway Percentage 75 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2001 19.7 MPG Highway Percentage 30 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2000 23.0 MPG Highway Percentage 85 percent Mercedes-Benz E-Class Mercedes-Benz E-Class 2000 27.0 MPG Highway Percentage 70 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2019 2dr Convertible turbocharged 362hp 3.0L V6
9-speed shiftable automatic RWD
flat med hvy 0 98 0 2 80 18.0  
2015 4dr Sedan 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
mtns med light 0 5 5 90 75 27.9  
2014 4dr Wagon turbocharged 577hp 5.5L V8
7-speed shiftable automatic AWD
flat med light 1 4 20 75 65 17.9  
2014 4dr Sedan turbocharged 195hp 2.1L I4 Diesel
7-speed shiftable automatic RWD
hills light light 0 0 2 98 75 39.0  
2014 4dr Sedan turbocharged 195hp 2.1L I4 Diesel
7-speed shiftable automatic AWD
flat med light 10 8 10 73 75 43.7  
2014 4dr Sedan 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
hills med none 13 43 0 45 75 25.9  
2013 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
flat med hvy 0 10 7 83 84 34.9  
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2013 4dr Sedan 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat med none 10 30 30 30 70 20.6  
2012 4dr Wagon 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat light hvy 10 20 50 20 60 21.2  
2012 4dr Sedan turbocharged 402hp 4.7L V8
7-speed shiftable automatic AWD
flat med none 10 35 5 50 75 21.0  
2012 4dr Sedan 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
hills med light 15 18 12 55 73 27.7  
2011 4dr Wagon turbocharged 201hp 2.1L I4 Diesel
7-speed shiftable automatic RWD
flat light light 30 10 20 40 100 37.9  
2011 4dr Wagon 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat light light 0 15 25 60 55 19.0  
2011 4dr Sedan 382-horsepower 5.5L V8
7-speed shiftable automatic RWD
flat light none 5 15 50 30 65 22.8  
2011 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
hills lead hvy 30 70 0 0 N/A 15.8  
2011 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
hills med light 5 21 10 65 64 23.3  
2010 4dr Sedan 382-horsepower 5.5L V8
7-speed shiftable automatic RWD
flat light light 7 42 10 42 83 17.5  
2010 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med light 7 32 12 49 71 22.8  
2010 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat light hvy 4 13 31 51 63 19.8  
2009 4dr Wagon turbocharged 168hp 2.1L I4 Diesel
6-speed manual RWD
hills med light 10 25 30 35 150 29.0  
2009 4dr Sedan turbocharged 221hp 3.0L V6 Diesel
5-speed shiftable automatic AWD
flat light light 2 6 6 85 100 29.8  
2009 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
flat med light 10 80 10 0 N/A 32.0  
2009 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
hills med light 0 1 44 55 69 24.4  
2008.5 4dr Sedan turbocharged 221hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
flat light none 5 20 30 45 60 30.8  
2008 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
flat med light 0 19 15 66 74 34.5  
2008 4dr Sedan turbocharged 168hp 2.1L I4 Diesel
5-speed shiftable automatic RWD
hills light light 6 0 0 94 80 47.0  
2008 4dr Sedan 507-horsepower 6.2L V8
7-speed shiftable automatic RWD
flat med none 18 18 25 38 60 18.5  
2008 4dr Sedan 382-horsepower 5.5L V8
7-speed shiftable automatic RWD
flat med light 4 12 24 61 71 20.5  
2008 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med light 10 30 30 30 75 20.6  
2007 4dr Sedan turbocharged 208hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
flat med light 5 8 22 65 71 34.3  
2007 4dr Sedan 507-horsepower 6.2L V8
7-speed shiftable automatic RWD
flat light light 21 13 11 55 73 19.1  
2007 4dr Sedan 382-horsepower 5.5L V8
7-speed shiftable automatic RWD
flat med none 25 25 0 50 70 22.0  
2007 4dr Sedan 382-horsepower 5.5L V8
5-speed shiftable automatic AWD
flat med none 0 10 80 10 65 19.7  
2007 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med light 3 17 27 53 72 23.4  
2006 4dr Wagon 302-horsepower 5.0L V8
5-speed shiftable automatic AWD
hills light light 10 50 20 20 60 19.0  
2006 4dr Sedan turbocharged 201hp 3.2L I6 Diesel
5-speed shiftable automatic RWD
flat light light 6 15 28 51 66 33.0  
2006 4dr Sedan 302-horsepower 5.0L V8
5-speed shiftable automatic AWD
flat med none 5 10 40 45 70 16.7  
2006 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat light light 13 11 20 57 67 24.7  
2006 4dr Sedan 268-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat med light 38 12 6 44 66 21.3  
2005 4dr Sedan turbocharged 201hp 3.2L I6 Diesel
5-speed shiftable automatic RWD
flat med light 5 11 29 55 71 33.3  
2005 4dr Sedan supercharged 469hp 5.4L V8
5-speed shiftable automatic RWD
flat light none 30 30 0 40 75 19.0  
2005 4dr Sedan 302-horsepower 5.0L V8
7-speed shiftable automatic RWD
flat med light 18 17 15 50 75 21.7  
2005 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic AWD
flat light none 21 23 27 29 70 22.0  
2004 4dr Wagon 302-horsepower 5.0L V8
5-speed shiftable automatic AWD
flat med light 10 15 25 50 70 17.0  
2004 4dr Sedan supercharged 469hp 5.4L V8
5-speed shiftable automatic RWD
flat med hvy 11 15 7 67 77 19.1  
2004 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic RWD
hills med hvy 5 40 5 50 75 25.4  
2003 4dr Sedan 302-horsepower 5.0L V8
5-speed shiftable automatic RWD
flat med hvy 11 12 31 46 78 22.9  
2003 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat light light 20 17 44 19 67 19.4  
2002 4dr Sedan 275-horsepower 4.3L V8
5-speed shiftable automatic RWD
flat light hvy 0 20 0 80 70 22.6  
2002 4dr Sedan 275-horsepower 4.3L V8
5-speed shiftable automatic AWD
flat lead none 21 23 25 31 70 22.0  
2002 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic RWD
hills light hvy 5 25 55 15 60 24.0  
2002 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic AWD
flat med hvy 0 0 25 75 63 26.0  
2001 4dr Wagon 221-horsepower 3.2L V6
5-speed shiftable automatic AWD
hills med none 5 25 40 30 70 19.7  
2000 4dr Sedan 275-horsepower 4.3L V8
5-speed shiftable automatic RWD
flat med none 0 5 10 85 60 23.0  
2000 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat med none 15 10 5 70 75 27.0  

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Mazda MX-5 Miata MPG

Mazda MX-5 Miata Mazda MX-5 Miata 2017 31.1 MPG Highway Percentage 50 percent Mazda MX-5 Miata Mazda MX-5 Miata 2016 34.5 MPG Highway Percentage 40 percent Mazda MX-5 Miata Mazda MX-5 Miata 2016 40.8 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2013 35.6 MPG Highway Percentage 44 percent Mazda MX-5 Miata Mazda MX-5 Miata 2012 28.7 MPG Highway Percentage 49 percent Mazda MX-5 Miata Mazda MX-5 Miata 2011 31.0 MPG Highway Percentage 60 percent Mazda MX-5 Miata Mazda MX-5 Miata 2010 28.3 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2010 30.7 MPG Highway Percentage 85 percent Mazda MX-5 Miata Mazda MX-5 Miata 2009 26.9 MPG Highway Percentage 36 percent Mazda MX-5 Miata Mazda MX-5 Miata 2009 31.5 MPG Highway Percentage 73 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 27.6 MPG Highway Percentage 46 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 27.2 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 30.7 MPG Highway Percentage 63 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 27.9 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 26.0 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 30.4 MPG Highway Percentage 47 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 26.9 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 27.7 MPG Highway Percentage 13 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 27.8 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2005 27.5 MPG Highway Percentage 35 percent Mazda MX-5 Miata Mazda MX-5 Miata 2005 31.2 MPG Highway Percentage 84 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 25.9 MPG Highway Percentage 45 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 27.0 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 18.8 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2003 31.9 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2003 28.0 MPG Highway Percentage 42 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 23.6 MPG Highway Percentage 43 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 28.5 MPG Highway Percentage 60 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 21.5 MPG Highway Percentage 20 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 27.9 MPG Highway Percentage 25 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 25.5 MPG Highway Percentage 20 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 31.2 MPG Highway Percentage 71 percent Mazda MX-5 Miata Mazda MX-5 Miata 2000 27.0 MPG Highway Percentage 70 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2017 2dr Convertible 155-horsepower 2.0L I4
6-speed manual RWD
flat med light 25 25 0 50 70 31.1  
2016 2dr Convertible 155-horsepower 2.0L I4
6-speed manual RWD
hills lead none 15 30 15 40 80 34.5  
2016 2dr Convertible 129-horsepower 1.5L I4
6-speed manual RWD
flat v.lt none 5 5 20 70 65 40.8  
2013 2dr Convertible 167-horsepower 2.0L I4
5-speed manual RWD
hills med light 5 5 46 44 60 35.6  
2012 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 1 10 39 49 70 28.7  
2011 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat med hvy 0 40 0 60 70 31.0  
2010 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 15 16 19 51 68 28.3  
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2010 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
hills med none 2 2 13 85 63 30.7  
2009 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 11 20 34 36 70 26.9  
2009 2dr Convertible 167-horsepower 2.0L I4
5-speed manual RWD
flat lead none 0 8 20 73 73 31.5  
2008 2dr Convertible 166-horsepower 2.0L I4
6-speed manual RWD
flat med light 5 15 34 46 67 27.6  
2008 2dr Convertible 166-horsepower 2.0L I4
5-speed manual RWD
flat lead none 0 10 10 80 63 27.2  
2008 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
hills med light 17 8 13 63 75 30.7  
2007 2dr Convertible 166-horsepower 2.0L I4
6-speed manual RWD
flat med none 15 28 5 51 80 27.9  
2007 2dr Convertible 166-horsepower 2.0L I4
5-speed manual RWD
hills v.lt light 0 15 15 70 50 26.0  
2007 2dr Convertible 163-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat med hvy 2 14 37 47 67 30.4  
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
flat med light 1 3 45 51 96 26.9  
2006 2dr Convertible 170-horsepower 2.0L I4
5-speed manual RWD
flat lead light 7 67 13 13 93 27.7  
2006 2dr Convertible 166-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat light none 0 0 30 70 70 27.8  
2005 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
hills med none 13 23 29 35 67 27.5  
2005 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 0 0 16 84 76 31.2  
2004 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
flat med light 4 26 24 45 65 25.9  
2004 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
flat lead none 0 0 20 80 60 27.0  
2004 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 3 10 7 80 110 18.8  
2003 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
hills med none 3 10 18 70 83 31.9  
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 7 26 25 42 70 28.0  
2002 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
flat med light 8 20 30 43 74 23.6  
2002 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 23 13 5 60 68 28.5  
2002 2dr Convertible 142-horsepower 1.8L I4
4-speed automatic RWD
flat light light 10 20 50 20 60 21.5  
2001 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
hills lead light 3 60 13 25 55 27.9  
2001 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med light 14 22 45 20 68 25.5  
2001 2dr Convertible 142-horsepower 1.8L I4
4-speed automatic RWD
hills med none 0 0 29 71 58 31.2  
2000 2dr Convertible 140-horsepower 1.8L I4
5-speed manual RWD
flat med none 0 20 10 70 80 27.0  

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This page shows only averages. See all the Mazda MX-5 Miata fuel economy data.

Mercedes-Benz E-Class vs. Mazda MX-5 Miata MPG

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Mercedes-Benz E-Class and Mazda MX-5 Miata's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all Sedans, Wagons, Coupes, and Convertibles.
See TrueDelta's information for all Mercedes-Benz models and Mazda models.

TrueDelta Reviews the Real Gas Mileage of the Mercedes-Benz E-Class

Mercedes-Benz E-Class Real Gas Mileage: Pros
YearComment
2014 The latest diesels tend to be much smoother, quieter, and more powerful than those of just a few years ago. But people still don't buy them for their smoothness, quietness, or quickness. Gas engines maintain a lead in these areas. People buy diesels for fuel economy, and here the Mercedes-Benz E250 BlueTEC excels. Its EPA numbers are best-in-class: 28 mpg city and 42 mpg highway with rear-wheel-drive (RWD) and 27/38 with all-wheel-drive (AWD). Even in E400 Hybrid form the gasoline V6 in the E-Class manages only 24/30. The Audi A6 TDI, offered only with AWD, scores significantly lower than the E250 in city driving: 24/38. The BMW 535d splits the difference in city driving, but runs with the Audi on the highway: 26/38 with RWD and 26/37 with AWD. So, based on the EPA numbers, the Mercedes has a significant fuel economy advantage, especially on the highway. Combine the EPA figures with a 21 gallon fuel tank, and the E250 BlueTEC can cover up to 900 miles between fill-ups. (This is especially attractive when you consider the sliminess of diesel fuel. Even much more than with gas, which largely evaporates when not contained, you do not want to spill any diesel on you or your clothing.) Switching to the real-world numbers reported by the cars' trip computers, the Mercedes (tested with AWD) retains a clear edge over the Audi on the highway, where the trip computers reported 45 and 38, respectively. In suburban driving with a light right foot the results were closer, about 40 to 37. I did test the Mercedes in the Bay Area of California, rather than back home in Michigan. On my usual suburban route it probably would have managed a few more miles per gallon. Also add two-to-three mpg for RWD rather than AWD. Most of my driving in the E250 was done along the scenic California coast, where a leisurely drive with infrequent stops but plentiful hilly curves netted 37 mpg on the way south and 41 on the return. Quite good for a fairly heavy all-wheel-drive luxury sedan--but the Audi (based on similar driving in an A7 TDI) would have been close. The real challenge comes from BMW. In my suburban driving the 535d's trip computer reported from 37 to 47, with low 40s typical. On one highway drive it reported an astounding 53.8 (but on another a mere 38). The tested 535d was RWD. Even so, if both trip computers were similarly accurate the BMW could be about as efficient as the Mercedes in real-world driving, while being considerably more powerful. Also, the 535d isn't the only BMW diesel sedan available in North America. If you can live with less interior space and less power, the Bavarians also offer the 328d (compared to the E250 here). The much lighter, four-cylinder car achieves EPA ratings of 32/45 with RWD and 31/43 with AWD, suggesting a clear advantage in city and suburban driving if not on the highway. see full Mercedes-Benz E-Class review
 

What Our Members Are Saying about the Real Gas Mileage of the Mercedes-Benz E-Class

Mercedes-Benz E-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 4dr Wagon 302-horsepower 3.5L V6
7-speed shiftable automatic AWD
Much better gas mileage than a crossover. see full Mercedes-Benz E-Class review
2009 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
I am getting 35 MPG in city driving. see full Mercedes-Benz E-Class review
2009 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
I have been averaging 26 MPG (indicated) in mixed suburban and highway driving, which I think is pretty good. see full Mercedes-Benz E-Class review
2008 4dr Sedan turbocharged 210hp 3.0L V6 Diesel
7-speed shiftable automatic RWD
Diesel delivers 40+ MPG at reasonable (70 mpg) highway speed, around 29 mpg around town. Diesel is quiet and powerful. Acceleration is awesome. Average 575 miles per tank. see full Mercedes-Benz E-Class review
2006 4dr Sedan turbocharged 201hp 3.2L I6 Diesel
5-speed shiftable automatic RWD
Best large traditional vechicle with diesel dependablty and mileage. see full Mercedes-Benz E-Class review
2005 4dr Sedan turbocharged 201hp 3.2L I6 Diesel
5-speed shiftable automatic RWD
I get 35 MPG at 70 MPH. This is hard to beat with any hybrid or gas engine see full Mercedes-Benz E-Class review
2005 4dr Sedan turbocharged 201hp 3.2L I6 Diesel
5-speed shiftable automatic RWD
Fuel cost now down to $2,33 a gallon, not too far from regular gas.This brings cost per mile way down. see full Mercedes-Benz E-Class review
2004 4dr Sedan 221-horsepower 3.2L V6
5-speed shiftable automatic RWD
anywhere from 25 - 30 mpg average. Great for a car this size. see full Mercedes-Benz E-Class review
2003 4dr Sedan 302-horsepower 5.0L V8
5-speed shiftable automatic RWD
25 mpg consistant on the highway see full Mercedes-Benz E-Class review
Mercedes-Benz E-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr Sedan 268-horsepower 3.5L V6
5-speed shiftable automatic AWD
The 4matic full time all wheel drive means the absolute best of 100% highway cruising only gave me 27 MPG. In the city I usually average under 15 MPG. see full Mercedes-Benz E-Class review
2007 4dr Sedan 268-horsepower 3.5L V6
5-speed shiftable automatic AWD
we get about 25 mpg with the 268 hp V6 4 matic on the road . Maybe 16-17 in town . see full Mercedes-Benz E-Class review
2006 4dr Sedan 268-horsepower 3.5L V6
5-speed shiftable automatic AWD
I average 16mpg around town. Not good. see full Mercedes-Benz E-Class review
2005 4dr Sedan supercharged 469hp 5.4L V8
5-speed shiftable automatic RWD
Average 17 MPG. 10 MPG when having fun! see full Mercedes-Benz E-Class review
2004 4dr Sedan supercharged 469hp 5.4L V8
5-speed shiftable automatic RWD
While my AMG was an iron beast something is wrong when so many gas station attendants know you on a first name basis. With the cost of premium fuel and an average of 14 mpg it was time to say goodbye. see full Mercedes-Benz E-Class review
2003 4dr Sedan 302-horsepower 5.0L V8
5-speed shiftable automatic RWD
E500 is very bad on gas see full Mercedes-Benz E-Class review
 

TrueDelta Reviews the Real Gas Mileage of the Mazda MX-5 Miata

Mazda MX-5 Miata Real Gas Mileage: Pros
YearComment
2016 Nothing has improved more with the Mazda MX-5 Miata's latest redesign than its fuel economy. The 2015 managed only 21 mpg city and 28 mpg highway in the EPA's tests, disappointing for such a light car powered by a naturally aspirated 2.0-liter engine. The new car tests much better: 27/34 with a manual transmission and 27/36 with an automatic. The MINI Cooper S Roadster was about equally efficient when equipped with a manual transmission (26/35), a little short with an automatic (25/34). The new MINI Convertible, if it shares the Hardtop's EPA ratings, won't be as efficient with a manual transmission (23/33) but will be as competitive as its predecessor with an automatic (26/33). The Scion FR-S barely out-economizes the old Miata with a manual (22/30) but is just a couple mpg short of the new one with an automatic (25/34). Premium fuel is recommended in all of these cars. The new Miata can use regular unleaded at the cost of some responsiveness. In my real-world driving of the new Miata with an automatic transmission the trip computer reported a suburban average around 30 mpg. On a 60-mph highway the average can reach 40, about 4 mpg better than a Scion FR-S and 5 mpg better than a MINI JCW Clubman, both tested with manual transmissions. Drive at 75 mph with the top down, though, and the reported average will fall to 34 mpg. The largest fuel economy advantage over the Scion FR-S appeared when both were flogged along Ohio's Route 26. The Scion's fuel economy dipped into the high teens, but the Mazda's only into the mid-20s. The most likely reason: the torquier, far less peaky Mazda engine doesn't have to be revved nearly as high to reach its sweet spot. The JCW Clubman, its turbo reducing the need for fuel-guzzling runs to the red line, fell between the two with a "spirited driving" average around 20 mpg. Overall, with the redesign the Miata's fuel economy has gone from worst to first. see full Mazda MX-5 Miata review
Mazda MX-5 Miata Real Gas Mileage: Cons
YearComment
The first four "why nots" shouldn't have come as a surprise to anyone. This one might. I didn't ding the MX-5 Miata's engine for its power output, but I am going to ding it for its fuel input. While EPA ratings of 21 mpg city and 28 mpg are hardly abysmal, the FR-S does better (22/30) and a 315-horsepower Porsche Boxster S does about as well (20/28). With one of Mazda's new SKYACTIV engines, the Miata would go much farther on a gallon of gas. (The 2,900-pound Mazda3 is rated 27/39.) But this engine won't happen until the Miata is again redesigned. see full Mazda MX-5 Miata review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda MX-5 Miata

Mazda MX-5 Miata Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
Good enough to drive for fun and not worry about the cost. see full Mazda MX-5 Miata review
2008 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
I average 28mpg city and about 32 highway, and I have an uncontrollable lead foot in this car. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
The MX-5 always seemed to be great on gas, no matter how hard you flogged it, top up or top down. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
I average about 8.5 L/100 km, so even though it uses Premium fue, it only costs about $40 to drive as much as 475km. This is with gas at about $1.20 a litre. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
a very cheap car to run see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
To date gas millage has never gone under 30mph and has gone to almost 39mph. And this has not been driving it EASY. Like I said before, it is a FUN FUN FUN Car. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
Great fuel economy for a sporty car. see full Mazda MX-5 Miata review
2005 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
Excellent mileage. I get 36mpg on normal highway cruises and about 28mpg in town. When I go to the race track, I run around 22-24 mpg. If you are really savvy, this car burns about 2 gallons an hour! So cheap to keep on the road. see full Mazda MX-5 Miata review
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
Never thirstier than 10.5 l/100 km, even during autocross. see full Mazda MX-5 Miata review
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
30-35 MPG....easy question these days. see full Mazda MX-5 Miata review
Mazda MX-5 Miata Real Gas Mileage: Cons
YearBody/PowertrainComment
2003 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
For a small (size of a subcompact) 4-cylinder stick shift, it only gets around 28 mpg highway...my 6-cylinder Honda Accord got 30+. see full Mazda MX-5 Miata review