Pontiac Bonneville vs Pontiac G8 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
$5,053
7 listings nationwide

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2009 Pontiac G8
Base
CarGurus Instant Market Value
$8,684
92 listings nationwide
6 GREAT deals
13 GOOD deals

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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 ...

2009 Pontiac G8
Base

The rear-wheel-drive G8 sedan represents Pontiac's newfound determination to live up to its once-glorious performance heritage. The 2009 G8 comes in three trims. The base G8 provides ...

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

2009 Pontiac G8
Base
40
writes:
Car is lighter and has very notable acceleration over the Camaro. Much rarer as well. It was produced in the ...
Handling Ranked 2010 Chevrolet Camaro 2SS Coupe RWD worse.
"They handled very similar in most aspects, but the car seemed smaller and lighter. Traction control usually kicked in while shifting into second on the G8 GT. Also, while at higher speeds, there was more immediate acceleration by the G8 GT."
Back Seats Ranked 2010 Chevrolet Camaro 2SS Coupe RWD worse.
"Much roomier. It is a full size sedan with a performance motor."
writes:
Beautiful car. Sleek arrow dynamic styling. However, very limited on amenities, even for a car of its time. Th...
Power Ranked 2016 Chevrolet SS RWD better.
"LS3 415hp motor"
Handling Ranked 2016 Chevrolet SS RWD better.
"Magnetic ride control"
writes:
Great sport sedan. Fun to drive with great power and handling.
Power Ranked 2006 Jeep Liberty Limited 4WD worse.
"Engine is for performance v6."
Family Car Ranked 2006 Jeep Liberty Limited 4WD better.
"More room thats it."

Specs

2005 Pontiac Bonneville
GXP
2009 Pontiac G8
Base
Powertrain 4-Speed Automatic 5-Speed Automatic
Drivetrain
FWD
RWD
Fuel Economy, City
15 MPG
17 MPG
Fuel Economy, Highway
22 MPG
25 MPG
Fuel Tank Volume 18 gal 19 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
275 hp @ 5,600 RPM
256 hp @ 6,300 RPM
Torque
300 lb-ft @ 4,000 RPM
248 lb-ft @ 2,100 RPM
Cylinders
8 cylinders
6 cylinders
Compression Ratio
10:1
10.2:1
Displacement
4,600 cc
3,600 cc
Bore x Stroke
3.66 in x 3.31 in
3.7 in x 3.37 in
Safety
ABS Brakes Optional Standard
Driver Airbag Optional Standard
Passenger Airbag Optional Standard
Front Side Airbags Optional Standard
Rear Side Airbags -- Standard
Curtain Airbags -- Standard
NHTSA Crash Test Results
Front Driver 4 stars --
Front Passenger 5 stars --
Side Driver 4 stars --
Side Rear Passenger 4 stars --
Rollover (pre-2011) 5 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 39.4 in
Payload and Towing
Cargo Volume 18 cu ft 17.5 cu ft
Standard Towing Capacity -- 2,000 lbs
Maximum Towing Capacity -- 2,000 lbs
Exterior
Length 202.6 in 196.1 in
Width 74.2 in 74.8 in
Height 56.6 in 57.7 in
Wheelbase 112.2 in 114.8 in

Available Options

2005 Pontiac Bonneville
GXP
2009 Pontiac G8
Base

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