Pontiac Grand Prix vs. Mercedes-Benz GL MPG

Chart is based on 102 fuel economy reports for the Pontiac Grand Prix and 48 fuel economy reports for the Mercedes-Benz GL.

Pontiac Grand Prix 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
2008	4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD	flat	med	none	7	39	32	21	61	20.0
2008	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	hills	light	hvy	0	0	100	0	N/A	20.5
2007	4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD	flat	med	none	3	37	10	50	63	19.7
2007	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	hills	light	none	17	24	8	53	63	23.7
2006	4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD	flat	med	light	3	43	23	33	100	20.8
2006	4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD	flat	med	light	5	22	28	45	69	18.4
2006	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	light	10	11	31	49	69	24.4
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2005	4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD	hills	med	hvy	0	0	5	95	70	28.0
2005	4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD	flat	med	none	7	23	45	25	65	17.9
2005	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	light	none	10	24	21	45	65	23.5
2004	4dr Sedan supercharged 260hp 3.8L V6 4-speed shiftable automatic FWD	hills	med	light	26	23	23	28	72	20.6
2004	4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD	hills	med	none	0	40	40	20	65	19.6
2004	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	light	3	7	20	70	77	27.5
2003	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	light	19	23	25	34	60	22.4
2003	4dr Sedan 175-horsepower 3.1L V6 4-speed automatic FWD	flat	med	none	9	10	80	1	100	26.1
2002	4dr Sedan supercharged 240hp 3.8L V6 4-speed automatic FWD	flat	med	light	66	8	3	23	64	22.4
2002	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	none	2	25	70	3	75	20.9
2002	2dr Coupe 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	light	0	17	28	56	65	21.4
2001	4dr Sedan supercharged 240hp 3.8L V6 4-speed automatic FWD	flat	light	light	9	5	5	83	80	24.3
2001	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	v.lt	none	0	0	1	99	60	31.0
2001	4dr Sedan 175-horsepower 3.1L V6 4-speed automatic FWD	flat	v.lt	light	0	2	3	95	80	28.1
2000	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	light	none	5	5	5	85	70	24.5

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This page shows only averages. See all the Pontiac Grand Prix 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.

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What Our Members Are Saying about the Real Gas Mileage of the Pontiac Grand Prix

Pontiac Grand Prix Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2006	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	it was listed as being better than the impalla see full Pontiac Grand Prix review
2006	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	Good for a speedy V6 and a huge car. see full Pontiac Grand Prix review
2005	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	Thus far, I have averaged 23 and 26 mpg, both times have had roughly a 70 mile highway trip out of 200 miles. Overall, I find this to be acceptable. see full Pontiac Grand Prix review
2002	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	HORRIBLE. 12-16mpg combined with both city and driving. see full Pontiac Grand Prix review
2002	4dr Sedan supercharged 240hp 3.8L V6 4-speed automatic FWD	BEFORE the switch to ethanol-mixed fuel, my supercharged V6 averaged 22mpg, getting 19 city and a staggering 34 highway. If you do long highway miles and want more comfort than any econo-box can offer, this is the car for you! see full Pontiac Grand Prix review

Pontiac Grand Prix Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2006	4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD	Great V8 exhaust note and instant acceleration comes at the cost of about 19 mpg in combined driving, versus 25 with my new car. That is a 30% increase. (the new car is 600 pounds lighter though...) see full Pontiac Grand Prix review
2005	4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD	17-19 mpg in the city. 25 If I drive on the intersate. 30 is possible at 60mph. Most of my driving is in the city. The beautiful v8 makes it impossible to stay out of the gas, but it can run on REG fuel. see full Pontiac Grand Prix 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