Pontiac Grand Prix vs. Mercedes-Benz M-Class MPG

Chart is based on 102 fuel economy reports for the Pontiac Grand Prix and 47 fuel economy reports for the Mercedes-Benz M-Class.

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 M-Class 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
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	hvy	7	21	16	56	65	29.1
2012	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	none	0	5	15	80	64	29.0
2011	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	10	10	60	20	60	24.0
2010	4dr SUV turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	med	light	5	10	50	35	100	21.8
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	1	5	25	69	70	26.6
2010	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	med	hvy	17	15	15	54	70	19.7
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	4	7	46	44	73	24.8
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2008	4dr SUV turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	25	30	30	15	100	21.2
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	2	18	17	63	70	25.3
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	v.lt	none	10	25	20	45	100	21.6
2007	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	6	9	18	67	69	20.8
2006	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	flat	lead	hvy	25	25	25	25	75	17.5
2006	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	light	light	0	0	46	54	65	19.6
2005	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	0	47	47	5	80	18.5
2005	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	5	20	25	50	70	15.2
2004	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	60	40	67	18.4
2003	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	5	5	25	65	80	17.5
2003	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	mtns	light	light	0	0	20	80	65	16.0
2002	4dr SUV 342-horsepower 5.4L V8 5-speed shiftable automatic AWD w/low range	flat	med	none	1	48	8	44	90	15.6
2002	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	light	8	50	20	23	88	16.1
2002	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	hvy	15	25	35	25	70	16.0
2000	4dr SUV 268-horsepower 4.3L V8 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	20	80	100	27.6
2000	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	none	0	0	10	90	65	21.5

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This page shows only averages. See all the Mercedes-Benz M-Class 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

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

Mercedes-Benz M-Class Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Upper 20's on highway and mid-20's in suburbia from a vehicle that weighs 5K lbs. see full Mercedes-Benz M-Class review
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Other luxury cars/SUVs require premium gas. Diesel could be same or even cheaper than regular gas and with immense torque and a somewhat light foot I get almost 25Mpg see full Mercedes-Benz M-Class review
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	5000 lbs vehicle. Gets 32 mpg on highway up to 75 mph, faster than that mpg drops. 23 to 24 mpg around town see full Mercedes-Benz M-Class review

Mercedes-Benz M-Class Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	Have a V8, so I should have expected, but mpg is averaging about 16 around town. With the current gas prices, I dread going to the pump. $90 to fill up the huge tank. see full Mercedes-Benz M-Class review