We are 103,000+ car owners sharing real-world car information.

Join Us

BMW 7-Series vs. Mercedes-Benz SLK MPG

Chart is based on 156 fuel economy reports for the BMW 7-Series and 18 fuel economy reports for the Mercedes-Benz SLK.

BMW 7-Series MPG

BMW 7-Series BMW 7-Series 2014 16.3 MPG Highway Percentage 0 percent BMW 7-Series BMW 7-Series 2010 14.0 MPG Highway Percentage 5 percent BMW 7-Series BMW 7-Series 2009 16.5 MPG Highway Percentage 80 percent BMW 7-Series BMW 7-Series 2008 19.0 MPG Highway Percentage 50 percent BMW 7-Series BMW 7-Series 2007 26.7 MPG Highway Percentage 80 percent BMW 7-Series BMW 7-Series 2006 21.5 MPG Highway Percentage 56 percent BMW 7-Series BMW 7-Series 2004 20.9 MPG Highway Percentage 10 percent BMW 7-Series BMW 7-Series 2003 20.8 MPG Highway Percentage 30 percent BMW 7-Series BMW 7-Series 2002 19.0 MPG Highway Percentage 20 percent BMW 7-Series BMW 7-Series 2001 20.7 MPG Highway Percentage 38 percent BMW 7-Series BMW 7-Series 2001 27.5 MPG Highway Percentage 75 percent BMW 7-Series BMW 7-Series 2000 15.7 MPG Highway Percentage 25 percent BMW 7-Series BMW 7-Series 2000 20.3 MPG Highway Percentage 85 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
2014 4dr Sedan, ext. turbocharged 315hp 3.0L I6
8-speed shiftable automatic AWD
hills lead none 0 60 40 0 16.3  
2010 4dr Sedan turbocharged 400hp 4.4L V8
6-speed shiftable automatic RWD
flat med hvy 10 10 75 5 80 14.0  
2009 4dr Sedan turbocharged 400hp 4.4L V8
6-speed shiftable automatic RWD
flat med light 0 15 5 80 65 16.5  
2008 4dr Sedan 360-horsepower 4.8L V8
6-speed shiftable automatic RWD
hills med light 20 10 20 50 75 19.0  
2007 4dr Sedan 360-horsepower 4.8L V8
6-speed shiftable automatic RWD
flat light light 0 0 20 80 70 26.7  
2006 4dr Sedan 360-horsepower 4.8L V8
6-speed shiftable automatic RWD
hills med hvy 6 26 12 56 72 21.5  
2004 4dr Sedan 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
hills med light 23 28 40 10 65 20.9  
Looking for a warranty? Get a quote.
2003 4dr Sedan 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
flat light none 45 20 5 30 60 20.8  
2002 4dr Sedan 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
flat med light 0 50 30 20 75 19.0  
2001 4dr Sedan 282-horsepower 4.4L V8
5-speed shiftable automatic RWD
hills med hvy 27 28 7 38 70 20.7  
2001 4dr Sedan 282-horsepower 4.4L V8
5-speed automatic RWD
flat med light 10 10 5 75 75 27.5  
2000 4dr Sedan, ext. 326-horsepower 5.4L V12
5-speed shiftable automatic RWD
hills med hvy 10 40 25 25 70 15.7  
2000 4dr Sedan 282-horsepower 4.4L V8
5-speed shiftable automatic RWD
hills lead hvy 1 4 10 85 80 20.3  

Return to top

This page shows only averages. See all the BMW 7-Series fuel economy data.

Mercedes-Benz SLK MPG

Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.8 MPG Highway Percentage 70 percent Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.0 MPG Highway Percentage 50 percent Mercedes-Benz SLK Mercedes-Benz SLK 2008 25.5 MPG Highway Percentage 80 percent Mercedes-Benz SLK Mercedes-Benz SLK 2007 25.6 MPG Highway Percentage 68 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 23.4 MPG Highway Percentage 85 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 24.7 MPG Highway Percentage 60 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 23.2 MPG Highway Percentage 53 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 24.0 MPG Highway Percentage 90 percent Mercedes-Benz SLK Mercedes-Benz SLK 2003 26.2 MPG Highway Percentage 79 percent Mercedes-Benz SLK Mercedes-Benz SLK 2001 25.3 MPG Highway Percentage 50 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
2009 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD
flat med light 0 10 20 70 100 21.8  
2009 2dr Hardtop conv. 300-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med hvy 0 5 45 50 65 21.0  
2008 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
mtns lead light 5 5 10 80 75 25.5  
2007 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
flat med none 13 13 8 68 95 25.6  
2006 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD
flat light light 2 10 3 85 70 23.4  
2006 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD
flat med hvy 10 10 20 60 70 24.7  
2005 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat med light 10 25 12 53 66 23.2  
Looking for a warranty? Get a quote.
2005 2dr Hardtop conv. 268-horsepower 3.5L V6
6-speed manual RWD
flat lead none 0 0 10 90 75 24.0  
2003 2dr Hardtop conv. supercharged 192hp 2.3L I4
5-speed shiftable automatic RWD
flat med light 0 5 16 79 72 26.2  
2001 2dr Hardtop conv. 215-horsepower 3.2L V6
5-speed shiftable automatic RWD
flat med light 1 15 35 50 63 25.3  

Return to top

This page shows only averages. See all the Mercedes-Benz SLK fuel economy data.

BMW 7-Series vs. Mercedes-Benz SLK 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 BMW 7-Series and Mercedes-Benz SLK'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
See TrueDelta's information for all BMW models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the BMW 7-Series

None of our members have yet commented on the real gas mileage of the BMW 7-Series.

Be the first!

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

Mercedes-Benz SLK Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD
clearly AMG was not thinking gas mileage at all when they built this engine see full Mercedes-Benz SLK review