BMW Z4 vs. Mercedes-Benz GL MPG

Chart is based on 87 fuel economy reports for the BMW Z4 and 48 fuel economy reports for the Mercedes-Benz GL.

BMW Z4 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
2011	2dr Hardtop conv. turbocharged 335hp 3.0L I6 7-speed automated manual RWD	hills	med	light	0	20	35	45	70	22.8
2010	2dr Hardtop conv. turbocharged 300hp 3.0L I6 7-speed automated manual RWD	flat	med	light	5	15	60	20	80	24.0
2010	2dr Hardtop conv. turbocharged 300hp 3.0L I6 6-speed manual RWD	flat	lead	light	3	0	20	77	72	24.7
2009	2dr Hardtop conv. turbocharged 300hp 3.0L I6 7-speed automated manual RWD	hills	med	hvy	10	5	67	19	120	19.6
2009	2dr Hardtop conv. 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	9	9	27	55	70	26.5
2008	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	flat	light	light	0	0	0	100	73	27.4
2008	2dr Convertible 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	none	0	10	10	80	100	24.2
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2008	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	17	3	6	75	75	29.8
2007	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	flat	med	none	8	22	28	42	65	20.0
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	lead	light	8	15	8	69	68	26.6
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	12	16	25	47	72	26.7
2007	2dr Convertible 330-horsepower 3.2L I6 6-speed manual RWD	flat	lead	none	50	17	7	27	75	18.0
2007	2dr Convertible 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	7	22	47	25	60	25.7
2007	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	hvy	1	4	25	70	70	30.6
2006	2dr Hatch 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	none	0	15	60	25	70	28.2
2006	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	10	10	30	50	65	26.7
2006	2dr Convertible 330-horsepower 3.2L I6 6-speed manual RWD	flat	med	none	8	46	25	20	78	17.7
2006	2dr Convertible 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	0	0	45	55	60	27.0
2006	2dr Convertible 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	2	28	38	32	70	25.2
2006	2dr Convertible 215-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	7	13	25	55	74	27.4
2005	2dr Convertible 225-horsepower 3.0L I6 5-speed shiftable automatic RWD	hills	med	light	1	1	23	75	65	28.1
2005	2dr Convertible 184-horsepower 2.5L I6 5-speed shiftable automatic RWD	flat	lead	hvy	15	25	18	43	60	21.4
2005	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	hills	light	none	10	40	30	20	65	23.0
2004	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	flat	med	none	4	20	55	21	67	26.8
2004	2dr Convertible 184-horsepower 2.5L I6 5-speed shiftable automatic RWD	flat	med	hvy	0	0	33	67	70	27.0
2004	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	flat	light	none	0	10	80	10	65	29.1
2003	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	8	8	30	53	70	27.2
2003	2dr Convertible 225-horsepower 3.0L I6 6-speed automated manual RWD	flat	light	light	10	20	50	20	60	26.8
2003	2dr Convertible 225-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	20	20	20	40	60	25.6
2003	2dr Convertible 184-horsepower 2.5L I6 6-speed automated manual RWD	flat	light	light	8	5	20	68	70	34.4
2003	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	flat	med	none	2	7	31	60	77	26.1

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This page shows only averages. See all the BMW Z4 fuel economy data.

Mercedes-Benz GL 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
2014	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	1	4	15	80	65	27.3
2011	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	light	hvy	1	49	20	30	70	15.0
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	7	13	34	46	64	24.0
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	13	60	27	72	22.5
2009	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	21	22	27	30	60	18.0
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	6	23	31	41	71	22.4
2008	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	flat	med	hvy	13	30	28	30	83	17.0
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2008	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	none	21	21	23	35	85	17.3
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	light	3	12	22	64	67	25.3
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	hills	med	light	15	21	22	42	60	16.0
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	9	16	38	38	65	17.4

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

See TrueDelta's information for all Hatchbacks and Convertibles.

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 Z4

BMW Z4 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	it gets better fuel economy than the M coupe, but still out performs the 2.5i and 3.0i models. see full BMW Z4 review
2007	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	Fuel economy is great. Getting 30 to 33 mpg on trips on 2 lane rural highways at 65 to 70 mph. see full BMW Z4 review
2006	2dr Convertible 215-horsepower 3.0L I6 6-speed manual RWD	Around town I get about 23 mpg but on the open highway, get 30 to 32 mpg which is huge since the Z only uses premium grade gas. see full BMW Z4 review
2004	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	Average 26-27mpg combined city/highway in daily commuter driving (no expressway)...even with some spirited driving. see full BMW Z4 review

BMW Z4 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	City driving only about 17 MPG; highway driving 21 MPG see full BMW Z4 review

TrueDelta Reviews the Real Gas Mileage of the Mercedes-Benz GL

Mercedes-Benz GL Real Gas Mileage: Pros
Year	Comment
2013	In the EPA's fuel economy tests the Mercedes-Benz GL350 BlueTEC rates 19 mpg city and 26 mpg highway. We observed low 20s in casual suburban driving (a few mpg lower with a heavy foot, a few mpg higher with a very light one) and 25.5 on our trip to Chicago and back (which included some heavy urban driving and 70-mph highways). These numbers don't seem so great, given that the GL350 burns diesel? Consider that the GL-Class is not only wide and tall but also very heavy, at nearly 5,500 pounds unloaded. The gas-powered GL450 is rated 14/19. Our family vehicle, a Ford Taurus X that weighs over 1,000 pounds less than the Mercedes, struggles to crack 22 on the highway. The Audi Q7 rates the same in city driving, and a couple mpg better on the highway. Since the GL350 is almost in another class size-wise, I'm calling this one a draw. Multiply this fuel economy by a 26.4-gallon tank, and the GL350 can go quite far between $100+ fill-ups. Is it really possible to drive the nearly 300 miles to Chicago--and then back--on one tank? Yes it is, with nearly a quarter-tank to spare. (Is it possible to do this without any of three kids needing to stop for a bathroom break? To our even greater surprise, yes to this as well. They were busy watching the $1,950 dual-screen entertainment system.) see full Mercedes-Benz GL review

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

Mercedes-Benz GL Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	For a large, seven passenger SUV it can deliver upwards of 28 mpg on the highway. see full Mercedes-Benz GL review
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	25 mpg highway fuel efficiency for a large 7 passenger SUV is fantastic see full Mercedes-Benz GL review
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Diesel provides 25 MPG on the highway see full Mercedes-Benz GL review

Mercedes-Benz GL Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2010	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	15 mpg average. premium fuel. see full Mercedes-Benz GL review