Pontiac Bonneville vs Pontiac GTO 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
$5,252
8 listings nationwide

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2006 Pontiac GTO
Coupe
CarGurus Instant Market Value
$16,108
64 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 ...

2006 Pontiac GTO
Coupe

The last year of a proposed three-year tryout, the 2006 Pontiac GTO two-door performance coupe offers few alterations. Already packed with a 6.0-liter, 400-hp V8 that gets up to 60 mph...

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

2006 Pontiac GTO
Coupe
10
writes:
A real serious driving machine. Careful she can get out of hand. Thrilling!
Looks/Style Ranked 2006 Ford Mustang GT Deluxe Coupe RWD worse.
"Mustang comes in so many options from 4 cyl, V6 to V8. The GTO is all power 6.0"
Back Seats Ranked 2006 Ford Mustang GT Deluxe Coupe RWD worse.
"The GTO has more seating room, bigger car! "
20
writes:
Really nice car, just liked the room in the monte carlo better.
Cargo Capacity Ranked 2006 Chevrolet Monte Carlo LTZ FWD better.
"Large trunk"
Family Car Ranked 2006 Chevrolet Monte Carlo LTZ FWD better.
"Roomy back seat."
10
writes:
Just love the style of this car over all

Specs

2005 Pontiac Bonneville
GXP
2006 Pontiac GTO
Coupe
Powertrain 4-Speed Automatic
Drivetrain
FWD
RWD
RWD
Fuel Economy, City
15 MPG
15 MPG
14 MPG
Fuel Economy, Highway
22 MPG
23 MPG
19 MPG
Fuel Tank Volume 18 gal 18 gal
Engine
Fuel Type
Gasoline
Gasoline
Gasoline
Power
275 hp @ 5,600 RPM
400 hp @ 5,200 RPM
400 hp @ 5,200 RPM
Torque
300 lb-ft @ 4,000 RPM
400 lb-ft @ 4,000 RPM
400 lb-ft @ 4,000 RPM
Cylinders
8 cylinders
8 cylinders
8 cylinders
Compression Ratio
10:1
10.9:1
10.9:1
Displacement
4,600 cc
6,000 cc
6,000 cc
Bore x Stroke
3.66 in x 3.31 in
4 in x 3.62 in
4 in x 3.62 in
Safety
ABS Brakes Optional Standard
Driver Airbag Optional Standard
Passenger Airbag Optional Standard
Front Side Airbags Optional --
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 --
Leather Seats Standard Standard
Air Conditioning Optional Standard
CD Player Optional Standard
CD Changer Optional Standard
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 4 seats
Front Legroom 42.6 in 42.2 in
Back Legroom 38 in 37.1 in
Payload and Towing
Cargo Volume 18 cu ft 7 cu ft
Standard Towing Capacity -- 1,000 lbs
Maximum Towing Capacity -- 1,000 lbs
Exterior
Length 202.6 in 189.8 in
Width 74.2 in 72.5 in
Height 56.6 in 54.9 in
Wheelbase 112.2 in 109.8 in

Available Options

2005 Pontiac Bonneville
GXP
2006 Pontiac GTO
Coupe

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