Mercedes-Benz SLK vs. BMW X6 MPG

Chart is based on 18 fuel economy reports for the Mercedes-Benz SLK and 11 fuel economy reports for the BMW X6.

Mercedes-Benz SLK MPG

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
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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

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

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
2011	4dr SUV turbocharged 400hp 4.4L V8 8-speed shiftable automatic AWD	flat	med	hvy	21	29	21	29	65	18.5
2011	4dr SUV turbocharged 300hp 3.0L I6 8-speed shiftable automatic AWD	flat	med	light	11	15	35	40	90	20.6
2009	4dr SUV turbocharged 300hp 3.0L I6 6-speed shiftable automatic AWD	flat	med	hvy	0	0	0	100	60	18.0
2008	4dr SUV turbocharged 300hp 3.0L I6 6-speed shiftable automatic AWD	flat	med	light	13	47	23	17	107	15.2
2008	4dr SUV turbocharged 232hp 3.0L I6 Diesel 6-speed shiftable automatic AWD	flat	light	light	15	20	5	60	70	22.5

This page shows only averages. See all the BMW X6 fuel economy data.

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Mercedes-Benz SLK Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
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

BMW X6 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2011	4dr SUV turbocharged 300hp 3.0L I6 8-speed shiftable automatic AWD	Took trip from W. Mass to Montreal and back. 686 miles total, avg. speed- highway and some in city driving- 58.6 mph. Avg. fuel economy from trip computer reset at beginning of trip . 24.2 mpg. 4 pax with luggage- a/c on. Impressive. see full BMW X6 review

BMW X6 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2008	4dr SUV turbocharged 300hp 3.0L I6 6-speed shiftable automatic AWD	thirsty, 17 lt/100km city see full BMW X6 review