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Audi A6 / S6 / RS6 vs. Mercedes-Benz C-Class MPG

Chart is based on 229 fuel economy reports for the Audi A6 / S6 / RS6 and 204 fuel economy reports for the Mercedes-Benz C-Class.

Audi A6 / S6 / RS6 MPG

Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2018 30.0 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2016 31.4 MPG Highway Percentage 85 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2014 26.7 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2013 17.3 MPG Highway Percentage 0 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2013 22.5 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2012 32.0 MPG Highway Percentage 90 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2011 23.8 MPG Highway Percentage 15 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2010 25.0 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2010 24.5 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2008 20.0 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 20.2 MPG Highway Percentage 49 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 12.1 MPG Highway Percentage 15 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 20.5 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 24.9 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006.5 41.6 MPG Highway Percentage 95 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 23.9 MPG Highway Percentage 44 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 19.3 MPG Highway Percentage 63 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 28.6 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 25.0 MPG Highway Percentage 62 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2005 18.3 MPG Highway Percentage 67 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2005 21.7 MPG Highway Percentage 54 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 18.1 MPG Highway Percentage 25 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 20.6 MPG Highway Percentage 54 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 20.2 MPG Highway Percentage 95 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 16.0 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 20.4 MPG Highway Percentage 72 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 22.0 MPG Highway Percentage 50 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 22.0 MPG Highway Percentage 76 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 21.0 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 20.4 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 21.3 MPG Highway Percentage 60 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 16.1 MPG Highway Percentage 44 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 19.0 MPG Highway Percentage 43 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 19.4 MPG Highway Percentage 45 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 24.0 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 18.7 MPG Highway Percentage 10 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 21.5 MPG Highway Percentage 8 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 20.7 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 21.2 MPG Highway Percentage 33 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 20.0 MPG Highway Percentage 50 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 20.8 MPG Highway Percentage 60 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 16.5 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 21.0 MPG Highway Percentage 33 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
2018 4dr Sedan supercharged 340hp 3.0L V6
8-speed shiftable automatic AWD
flat med hvy 5 5 35 55 65 30.0  
2016 4dr Sedan supercharged 333hp 3.0L V6
8-speed shiftable automatic AWD
flat med none 0 10 5 85 80 31.4  
2014 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD
flat med hvy 0 10 50 40 80 26.7  
2013 4dr Sedan turbocharged 420hp 4.0L V8
7-speed automated manual AWD
flat med light 0 100 0 0 0 17.3  
2013 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD
hills lead none 0 10 25 65 70 22.5  
2012 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD
flat med none 10 0 0 90 65 32.0  
2011 4dr Sedan supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD
flat med hvy 30 45 10 15 70 23.8  
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2010 4dr Wagon supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD
flat med light 10 20 40 30 75 25.0  
2010 4dr Sedan supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD
flat med light 9 6 20 65 88 24.5  
2008 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
flat med none 15 20 25 40 65 20.0  
2007 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
flat med light 0 11 40 49 75 20.2  
2007 4dr Sedan 435-horsepower 5.2L V10
6-speed shiftable automatic AWD
flat med light 30 50 5 15 70 12.1  
2007 4dr Sedan 350-horsepower 4.2L V8
6-speed shiftable automatic AWD
flat med light 10 5 20 65 70 20.5  
2007 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
hills light light 3 10 34 55 63 24.9  
2006.5 4dr Sedan turbocharged 140hp 2.0L I4 Diesel
6-speed manual FWD
flat v.lt none 5 0 0 95 60 41.6  
2006 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
flat med light 16 17 22 44 78 23.9  
2006 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD
flat med none 1 2 34 63 82 19.3  
2006 4dr Sedan 255-horsepower 3.1L V6
7-speed shiftable CVT FWD
flat med hvy 30 20 20 30 80 28.6  
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
flat med light 8 14 16 62 77 25.0  
2005 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD
flat med light 1 4 28 67 77 18.3  
2005 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
flat med light 11 13 23 54 81 21.7  
2004 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD
flat med none 25 25 25 25 75 18.1  
2004 4dr Sedan 265-horsepower 2.7L V6
5-speed shiftable automatic AWD
flat med light 4 25 17 54 70 20.6  
2004 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD
flat med none 5 0 0 95 68 20.2  
2003 4dr Wagon 340-horsepower 4.2L V8
5-speed shiftable automatic AWD
flat lead hvy 20 20 30 30 80 16.0  
2003 4dr Sedan turbocharged 450hp 4.2L V8
5-speed shiftable automatic AWD
flat med light 2 5 22 72 75 20.4  
2003 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
flat med none 0 20 30 50 75 22.0  
2003 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD
flat light light 5 7 12 76 70 22.0  
2003 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD
hills med light 13 8 15 65 90 21.0  
2003 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD
flat light light 16 13 30 40 88 20.4  
2002 4dr Wagon 220-horsepower 3.0L V6
5-speed shiftable automatic AWD
flat light light 15 15 10 60 60 21.3  
2002 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
flat med none 35 14 9 44 75 16.1  
2002 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD
flat med light 12 32 13 43 66 19.0  
2002 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD
flat light light 6 20 29 45 62 19.4  
2002 4dr Sedan 220-horsepower 3.0L V6
6-speed shiftable CVT FWD
flat med light 10 40 10 40 70 24.0  
2002 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD
flat light hvy 10 30 50 10 65 18.7  
2001 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
flat med light 3 33 58 8 75 21.5  
2001 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD
flat med none 4 12 29 55 71 20.7  
2001 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic AWD
hills med hvy 10 30 28 33 65 21.2  
2000 4dr Wagon 200-horsepower 2.8L V6
5-speed shiftable automatic AWD
hills med hvy 10 30 10 50 65 20.0  
2000 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
flat med none 10 20 10 60 120 20.8  
2000 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic FWD
hills light light 45 20 5 30 60 16.5  
2000 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic AWD
hills med none 8 23 35 33 72 21.0  

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This page shows only averages. See all the Audi A6 / S6 / RS6 fuel economy data.

Mercedes-Benz C-Class MPG

Mercedes-Benz C-Class Mercedes-Benz C-Class 2018 28.3 MPG Highway Percentage 70 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2017 32.5 MPG Highway Percentage 90 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2016 27.4 MPG Highway Percentage 54 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2015 23.3 MPG Highway Percentage 20 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2014 22.8 MPG Highway Percentage 48 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2013 23.1 MPG Highway Percentage 35 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2012 34.7 MPG Highway Percentage 90 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2012 28.5 MPG Highway Percentage 80 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2011 39.1 MPG Highway Percentage 75 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2011 24.1 MPG Highway Percentage 50 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2011 28.1 MPG Highway Percentage 40 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2010 16.6 MPG Highway Percentage 32 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2010 22.0 MPG Highway Percentage 35 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2010 25.4 MPG Highway Percentage 47 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2009 29.4 MPG Highway Percentage 0 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2009 26.2 MPG Highway Percentage 18 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2009 18.1 MPG Highway Percentage 40 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2009 22.2 MPG Highway Percentage 33 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2009 26.2 MPG Highway Percentage 76 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 24.8 MPG Highway Percentage 40 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 24.8 MPG Highway Percentage 60 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 21.9 MPG Highway Percentage 42 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 22.2 MPG Highway Percentage 60 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 22.2 MPG Highway Percentage 42 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 22.0 MPG Highway Percentage 37 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 24.9 MPG Highway Percentage 59 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2008 23.5 MPG Highway Percentage 30 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2007 21.4 MPG Highway Percentage 65 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2007 25.0 MPG Highway Percentage 28 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2007 24.1 MPG Highway Percentage 58 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2007 25.7 MPG Highway Percentage 60 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 19.7 MPG Highway Percentage 50 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 20.7 MPG Highway Percentage 10 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 29.4 MPG Highway Percentage 70 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 18.0 MPG Highway Percentage 43 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 24.4 MPG Highway Percentage 28 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 25.6 MPG Highway Percentage 40 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2005 29.1 MPG Highway Percentage 36 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2005 28.2 MPG Highway Percentage 52 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2005 18.0 MPG Highway Percentage 20 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2005 18.0 MPG Highway Percentage 10 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2005 27.5 MPG Highway Percentage 55 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2004.5 22.0 MPG Highway Percentage 50 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2004 28.0 MPG Highway Percentage 14 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2004 18.0 MPG Highway Percentage 15 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2004 29.6 MPG Highway Percentage 62 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2004 27.3 MPG Highway Percentage 50 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 18.7 MPG Highway Percentage 30 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 28.1 MPG Highway Percentage 50 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 21.7 MPG Highway Percentage 40 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 28.7 MPG Highway Percentage 80 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 24.0 MPG Highway Percentage 60 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 30.2 MPG Highway Percentage 65 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2003 31.5 MPG Highway Percentage 75 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2002 23.0 MPG Highway Percentage 15 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2002 20.0 MPG Highway Percentage 10 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2002 21.0 MPG Highway Percentage 16 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2002 20.7 MPG Highway Percentage 20 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2002 22.9 MPG Highway Percentage 48 percent Mercedes-Benz C-Class Mercedes-Benz C-Class 2001 23.3 MPG Highway Percentage 27 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
2018 2dr Convertible turbocharged 241hp 2.0L I4
9-speed shiftable automatic RWD
flat med light 0 5 25 70 75 28.3  
2017 4dr Sedan turbocharged 241hp 2.0L I4
7-speed shiftable automatic RWD
flat v.lt hvy 1 4 5 90 130 32.5  
2016 4dr Sedan turbocharged 241hp 2.0L I4
7-speed shiftable automatic AWD
flat v.lt light 0 0 46 54 106 27.4  
2015 4dr Sedan turbocharged 241hp 2.0L I4
7-speed shiftable automatic AWD
flat med hvy 5 70 5 20 65 23.3  
2014 4dr Sedan 248-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat v.lt hvy 14 29 8 48 64 22.8  
2013 4dr Sedan turbocharged 201hp 1.8L I4
7-speed shiftable automatic RWD
flat med light 10 10 45 35 75 23.1  
2012 2dr Coupe turbocharged 201hp 1.8L I4
7-speed shiftable automatic RWD
flat v.lt none 0 5 5 90 60 34.7  
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2012 2dr Coupe 302-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med light 10 2 8 80 75 28.5  
2011 4dr Sedan turbocharged 134hp 2.1L I4 Diesel
7-speed shiftable automatic RWD
flat light none 0 5 20 75 60 39.1  
2011 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
hills light none 10 0 40 50 75 24.1  
2011 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic AWD
hills light light 0 5 55 40 70 28.1  
2010 4dr Sedan 451-horsepower 6.2L V8
7-speed shiftable automatic RWD
flat med none 40 19 8 32 80 16.6  
2010 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat light hvy 40 0 25 35 70 22.0  
2010 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic AWD
flat med light 0 18 35 47 77 25.4  
2009 4dr Sedan turbocharged 168hp 2.1L I4 Diesel
6-speed manual RWD
flat med light 60 20 20 0 0 29.4  
2009 4dr Sedan supercharged 181hp 1.8L I4
5-speed shiftable automatic RWD
hills light none 20 38 25 18 95 26.2  
2009 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
mtns lead light 5 40 15 40 180 18.1  
2009 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
flat light light 23 26 18 33 68 22.2  
2009 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic AWD
flat light none 15 3 6 76 67 26.2  
2008 4dr Sedan supercharged 181hp 1.8L I4
5-speed shiftable automatic RWD
hills med light 10 20 30 40 110 24.8  
2008 4dr Sedan supercharged 154hp 1.8L I4
5-speed shiftable automatic RWD
flat light light 12 16 12 60 100 24.8  
2008 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med hvy 13 28 18 42 68 21.9  
2008 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat med hvy 10 20 10 60 120 22.2  
2008 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
flat med light 12 25 21 42 68 22.2  
2008 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic AWD
flat light light 6 10 47 37 68 22.0  
2008 4dr Sedan 228-horsepower 3.0L V6
6-speed manual RWD
hills light light 7 20 14 59 77 24.9  
2008 4dr Sedan 201-horsepower 2.5L V6
7-speed shiftable automatic AWD
flat light none 10 40 20 30 100 23.5  
2007 4dr Sedan 268-horsepower 3.5L V6
6-speed manual RWD
flat med none 0 0 35 65 68 21.4  
2007 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
flat med hvy 1 12 59 28 63 25.0  
2007 4dr Sedan 228-horsepower 3.0L V6
5-speed shiftable automatic AWD
hills med none 15 13 15 58 73 24.1  
2007 4dr Sedan 201-horsepower 2.5L V6
7-speed shiftable automatic RWD
hills med hvy 30 5 5 60 60 25.7  
2006 4dr Sedan 362-horsepower 5.4L V8
5-speed shiftable automatic RWD
flat med none 30 0 20 50 70 19.7  
2006 4dr Sedan 268-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat lead hvy 5 5 80 10 60 20.7  
2006 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
hills lead none 0 25 5 70 63 29.4  
2006 4dr Sedan 228-horsepower 3.0L V6
5-speed shiftable automatic AWD
hills light light 0 57 0 43 60 18.0  
2006 4dr Sedan 201-horsepower 2.5L V6
7-speed shiftable automatic RWD
flat light hvy 13 27 33 28 65 24.4  
2006 4dr Sedan 201-horsepower 2.5L V6
6-speed manual RWD
flat med hvy 3 27 30 40 73 25.6  
2005 4dr Sedan supercharged 189hp 1.8L I4
6-speed manual RWD
flat light light 10 36 18 36 66 29.1  
2005 4dr Sedan supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
flat med light 7 18 23 52 69 28.2  
2005 4dr Sedan 362-horsepower 5.4L V8
5-speed shiftable automatic RWD
flat med none 0 70 10 20 80 18.0  
2005 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
flat med none 10 55 25 10 60 18.0  
2005 2dr Hatch supercharged 189hp 1.8L I4
6-speed manual RWD
flat lead hvy 0 38 8 55 93 27.5  
2004.5 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic RWD
hills lead hvy 10 10 30 50 75 22.0  
2004 4dr Wagon 215-horsepower 3.2L V6
5-speed shiftable automatic RWD
hills med light 10 19 58 14 100 28.0  
2004 4dr Wagon 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
hills med light 0 65 20 15 60 18.0  
2004 4dr Sedan supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
hills med light 9 7 22 62 76 29.6  
2004 2dr Hatch supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
flat light none 20 10 20 50 65 27.3  
2003 4dr Wagon 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
flat med none 22 23 24 30 65 18.7  
2003 4dr Sedan supercharged 189hp 1.8L I4
6-speed manual RWD
flat med light 1 4 46 50 73 28.1  
2003 4dr Sedan supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
flat med light 18 28 13 40 107 21.7  
2003 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic RWD
hills med hvy 0 3 17 80 72 28.7  
2003 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
flat med none 10 15 15 60 70 24.0  
2003 2dr Hatch supercharged 189hp 1.8L I4
6-speed manual RWD
flat light none 3 4 27 65 83 30.2  
2003 2dr Hatch supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
mtns med hvy 3 5 18 75 130 31.5  
2002 4dr Wagon 215-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat med hvy 5 15 65 15 65 23.0  
2002 4dr Sedan 215-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat med light 20 60 10 10 60 20.0  
2002 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic RWD
flat med none 30 30 25 16 60 21.0  
2002 2dr Hatch supercharged 192hp 2.3L I4
6-speed manual RWD
flat med none 10 53 17 20 130 20.7  
2002 2dr Hatch supercharged 192hp 2.3L I4
5-speed shiftable automatic RWD
hills med hvy 12 12 30 48 73 22.9  
2001 4dr Sedan 215-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat med light 27 5 41 27 130 23.3  

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Audi A6 / S6 / RS6 vs. Mercedes-Benz C-Class 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 Audi A6 / S6 / RS6 and Mercedes-Benz C-Class'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 and Wagons.
See TrueDelta's information for all Audi models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the Audi A6 / S6 / RS6

Audi A6 / S6 / RS6 Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
It is @ least 4 mpg better hwy & city see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
It's hard to imagine such a powerful luxury car can get such great gas mileage. On a recent trip to Montreal I calculated my fuel economy to be somewhere in the 27mpg range....incredible! see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
better then 28 mpg on highway due to transmission gearing see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
Despite the performance of the A6 3.2 it delivers great mpg for such a large car. It excels on the open road. With cruise it is possible to achieve a range of 650+ miles on a tankful. see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
With the FSI and V6, I regularly see 27 mpg in city. And arround 30-32 mpg highway (no A/C on, and cruising at 80 mph). see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
21=22 mpg in cit/commute/highway driving -- pretty good for a large luxury car that weighs 4000+ pounds. see full Audi A6 / S6 / RS6 review
2004 4dr Sedan 220-horsepower 3.0L V6
6-speed shiftable CVT FWD
Typically 22-24 in-town and 29-31 on the road. Excellent economy for car size and level of comfort. see full Audi A6 / S6 / RS6 review
Audi A6 / S6 / RS6 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD
Poor relative to power see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD
this is not a car to be used as a city daily driver -- the best mpg you will get in all city driving is 12mpg see full Audi A6 / S6 / RS6 review
2002 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD
For a car that requires 91+ octane, it would be nice if it got better gas mileage in city driving (around 16-18 mpg). The mileage on the highway is much better (up to 26 mpg). see full Audi A6 / S6 / RS6 review
 

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

Mercedes-Benz C-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 4dr Sedan supercharged 181hp 1.8L I4
5-speed shiftable automatic RWD
Excellent highway economy for a luxury car. see full Mercedes-Benz C-Class review
2006 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
24mpg city, 32 mgp highway, surpasses many economy cars, tho uses premium fuel. see full Mercedes-Benz C-Class review
2005 4dr Sedan supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
Choose the 1.8L for its lowest gaz consumption and I am very satisfied with the results. This engine is able to keep te gaz bill low, and provide a driving experience with surprising excitment. see full Mercedes-Benz C-Class review
2005 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
better than rated fuel economy. we gat 25 mpg overall, and over 29 mpg on trips. see full Mercedes-Benz C-Class review
2004 4dr Sedan supercharged 189hp 1.8L I4
5-speed shiftable automatic RWD
30-35+ mpg on highway trips.28-30 mpg in town see full Mercedes-Benz C-Class review
2003 2dr Hatch supercharged 189hp 1.8L I4
6-speed manual RWD
Better than ratings on Highway see full Mercedes-Benz C-Class review
2003 4dr Sedan 168-horsepower 2.6L V6
5-speed shiftable automatic RWD
I figured I could get over 30 on trips, which I can. Hoped to stay above 25 around town, which I do. see full Mercedes-Benz C-Class review
Mercedes-Benz C-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr Sedan 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
Slow to downshift, so-so fuel economy in the city. Should really have 30 more horsepower. see full Mercedes-Benz C-Class review
2008 4dr Sedan 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
Fuel economy is about averge for this type of car, perhaps a bit less, but not a major deal. see full Mercedes-Benz C-Class review
2004 4dr Wagon 168-horsepower 2.6L V6
5-speed shiftable automatic AWD
The city mpg is usually around 15-17 mpg. Now that's for a hilly neighborhood in a big city, but still. True highway mileage usually about 26 - that's reasonable enough for us. see full Mercedes-Benz C-Class review