Pontiac Bonneville vs Pontiac Grand Prix Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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Used Car Pricing Used listing price comparison and analysis.

2005 Pontiac Bonneville
GXP
CarGurus Instant Market Value
$4,818
10 listings nationwide

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2008 Pontiac Grand Prix
Base
CarGurus Instant Market Value
$21,815
164 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2005 Pontiac Bonneville
GXP

After 47 years on the market, the Pontiac Bonneville hears the fat lady sing in 2005. Starting life as Pontiac's sporty full-size coupe and convertible in the 1950s and evolving into ...

2008 Pontiac Grand Prix
Base

The Pontiac Grand Prix backpedals a bit for 2008, which will be its last year in production. A GT version with a 260-horsepower supercharged V6 engine, available the previous few years...

User Reviews Reviews from CarGurus users who have driven or owned the car.

2005 Pontiac Bonneville
GXP
45
2005 Pontiac Bonneville GXPReview:

Gxp — fun car, drives great. expensive to maintain. love beating up on little tuners at the stoplight wh...

Primary Use: Sport/fun (spirited driving, track racing, off-roading, etc.)

105
2005 Pontiac Bonneville GXPReview:

Another Great Orphan Bites The Dust. — Pontiac has been a favorite of mine since owning my Firebird TransAms. This car has great handling, ...

Primary Use: Family transportation

50
2005 Pontiac Bonneville GXPReview:

Hey I Give It 10 Out Of 10 — 11/20/10 = Just found my 2005 Bonneville GXP, white tricoat with 18,000 miles. What a find. Have onl...

Primary Use: Commuting to work

2008 Pontiac Grand Prix
Base
writes:
Really good appearance, not great. V6 has good performance, not really good. Good condition gxps are hard to f...
Front Seats Ranked 1998 Ford Taurus worse.
"Sportier bucket seats versus bench like seats for the Taurus."
Family Car Ranked 1998 Ford Taurus worse.
"A family type car that doesnt make feel like your in an old mans car..."
writes:
Best ride in a car that I have experienced.
15
writes:
Beside some electrical issue some idiot had before me im content right now

Specs

2005 Pontiac Bonneville
GXP
2008 Pontiac Grand Prix
Base
Powertrain 4-Speed Automatic 4-Speed Automatic
Drivetrain
FWD
FWD
Fuel Economy, City
15 MPG
--
Fuel Economy, Highway
22 MPG
--
Fuel Tank Volume 18 gal 17 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
275 hp @ 5,600 RPM
200 hp @ 5,200 RPM
Torque
300 lb-ft @ 4,000 RPM
230 lb-ft @ 4,000 RPM
Cylinders
8 cylinders
6 cylinders
Compression Ratio
10:1
9.4:1
Displacement
4,600 cc
3,800 cc
Bore x Stroke
3.66 in x 3.31 in
3.8 in x 3.4 in
Safety
ABS Brakes Optional Optional
Driver Airbag Optional Standard
Passenger Airbag Optional Standard
Front Side Airbags Optional --
Curtain Airbags -- Optional
NHTSA Crash Test Results
Front Driver 4 stars 5 stars
Front Passenger 5 stars 4 stars
Side Driver 4 stars 3 stars
Side Rear Passenger 4 stars 3 stars
Rollover (pre-2011) 5 stars 4 stars
Comfort and Convenience
Sunroof/Moonroof Optional Optional
Leather Seats Standard Optional
Air Conditioning Optional Standard
CD Player Optional Standard
CD Changer Optional Optional
Cassette Player Optional --
Radio Optional Standard
Power Windows Optional Standard
Power Door Locks Optional Standard
Driver Power Seats Optional Standard
Passenger Power Seats Optional Standard
Interior
Maximum Seating 5 seats 5 seats
Front Legroom 42.6 in 42.2 in
Back Legroom 38 in 36.2 in
Payload and Towing
Cargo Volume 18 cu ft 16 cu ft
Standard Towing Capacity -- 1,000 lbs
Maximum Towing Capacity -- 1,000 lbs
Exterior
Length 202.6 in 198.3 in
Width 74.2 in 71.6 in
Height 56.6 in 55.9 in
Wheelbase 112.2 in 110.5 in

Available Options

2005 Pontiac Bonneville
GXP
2008 Pontiac Grand Prix
Base

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