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

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1999 Buick Riviera Supercharged Coupe FWD

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2005 Pontiac Bonneville GXP

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Used Car Pricing Used listing price comparison and analysis.

1999 Buick Riviera
Supercharged Coupe FWD
CarGurus Instant Market Value
$34,490
3 listings nationwide

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2005 Pontiac Bonneville
GXP
CarGurus Instant Market Value
$7,013
7 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

1999 Buick Riviera
Supercharged Coupe FWD
No Expert Reviews
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 ...

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

1999 Buick Riviera
Supercharged Coupe FWD
195
DPressler 1999 Buick Riviera Supercharged Coupe FWDReview:

Review — BEST USA built touring coupe built!!! GM took all the imperfections from the previous years and twe...

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165
Marshal 1999 Buick Riviera Supercharged Coupe FWDReview:

Overall I Love This Car. — i love this car. she is the one on the right. If i decide to go for a drive and get out on the higwa...

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

Full review »
185
Kevin 1999 Buick Riviera Supercharged Coupe FWDReview:

Good Luck Finding 1! — Great car owned it for 3 years and it is always reliable and it will beat most of the cras on the st...

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

Full review »
Read all 3 user reviews »
2005 Pontiac Bonneville
GXP
45
jwdstang2000 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.)

Full review »
125
donhank 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

Full review »
60
ruzzinator 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

Full review »
Read all 3 user reviews »

Specs

1999 Buick Riviera
Supercharged Coupe FWD
2005 Pontiac Bonneville
GXP
Powertrain 4-Speed Automatic 4-Speed Automatic
Drivetrain
FWD
FWD
Fuel Economy, City
16 MPG
15 MPG
Fuel Economy, Highway
25 MPG
22 MPG
Fuel Tank Volume 18 gal 18 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
240 hp @ 5,200 RPM
275 hp @ 5,600 RPM
Torque
280 lb-ft @ 3,600 RPM
300 lb-ft @ 4,000 RPM
Cylinders
6 cylinders
8 cylinders
Compression Ratio
8.5:1
10:1
Displacement
3,800 cc
4,600 cc
Bore x Stroke
3.8 in x 3.4 in
3.66 in x 3.31 in
Safety
ABS Brakes Standard Optional
Driver Airbag Standard Optional
Passenger Airbag Standard Optional
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 Optional
Leather Seats Standard Standard
Air Conditioning Standard Optional
CD Player Standard Optional
CD Changer Optional Optional
Cassette Player Standard Optional
Radio Standard Optional
Power Windows Standard Optional
Power Door Locks Standard Optional
Driver Power Seats Standard Optional
Passenger Power Seats Standard Optional
Interior
Maximum Seating 5 seats 5 seats
Front Legroom 42.6 in 42.6 in
Back Legroom 37.1 in 38 in
Payload and Towing
Cargo Volume 17.4 cu ft 18 cu ft
Standard Towing Capacity 1,000 lbs --
Maximum Towing Capacity 1,000 lbs --
Exterior
Length 207.2 in 202.6 in
Width 75 in 74.2 in
Height 54.6 in 56.6 in
Wheelbase 113.8 in 112.2 in

Available Options

1999 Buick Riviera
Supercharged Coupe FWD
2005 Pontiac Bonneville
GXP

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