Pontiac Bonneville vs Pontiac G6 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
$5,181
9 listings nationwide

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2010 Pontiac G6
GT Convertible
CarGurus Instant Market Value
$23,575

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 ...

2010 Pontiac G6
GT Convertible
Eric Tallberg Preview:

The 2010 Pontiac G6 remains essentially unchanged after a significant re-working for 2009. Offered in front-wheel drive only, the 2010 G6 is available as a coupe, hardtop convertible, ...

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

2010 Pontiac G6
GT Convertible
No User Reviews

Specs

2005 Pontiac Bonneville
GXP
2010 Pontiac G6
GT Convertible
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 16 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
275 hp @ 5,600 RPM
222 hp @ 5,600 RPM
Torque
300 lb-ft @ 4,000 RPM
238 lb-ft @ 4,000 RPM
Cylinders
8 cylinders
6 cylinders
Compression Ratio
10:1
9.8:1
Displacement
4,600 cc
3,900 cc
Bore x Stroke
3.66 in x 3.31 in
3.9 in x 3.31 in
Safety
ABS Brakes Optional Standard
Driver Airbag Optional Standard
Passenger Airbag Optional Standard
Front Side Airbags Optional Standard
NHTSA Crash Test Results
Front Driver 4 stars 5 stars
Front Passenger 5 stars 4 stars
Side Driver 4 stars 5 stars
Side Rear Passenger 4 stars 5 stars
Rollover (pre-2011) 5 stars 4 stars
Comfort and Convenience
Sunroof/Moonroof Optional --
Leather Seats Standard --
Air Conditioning Optional Standard
CD Player Optional Standard
CD Changer 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 --
Interior
Maximum Seating 5 seats 4 seats
Front Legroom 42.6 in 42.2 in
Back Legroom 38 in 34.2 in
Payload and Towing
Cargo Volume 18 cu ft 14 cu ft
Exterior
Length 202.6 in 189.1 in
Width 74.2 in 70.6 in
Height 56.6 in 56.7 in
Wheelbase 112.2 in 112.3 in

Available Options

2005 Pontiac Bonneville
GXP
2010 Pontiac G6
GT Convertible

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