2005 Pontiac Bonneville

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starting MSRP

2005 Pontiac Bonneville

Key specs

Base trim shown


The good:

  • Performance
  • Interior space
  • Ride comfort
  • Driving ease

The bad:

  • Handling in SE
  • Fuel economy in city
  • Resale value of SE

3 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2005 Pontiac Bonneville trim comparison will help you decide.

Notable features

  • SE and SLE with V-6
  • GXP with Northstar V-8
  • Performance-tuned suspension on GXP
  • Sporty styling
  • Available XM Satellite Radio

2005 Pontiac Bonneville review: Our expert's take

Vehicle Overview
Pontiac’s full-size front-wheel-drive sedan was last redesigned for the 2000 model year and received a face-lift for 2002. The supercharged SSEi edition was dropped from the 2004 lineup. A 205-horsepower, 3.8-liter V-6 powers the SE and SLE models.

A new GXP model powered by a 275-hp Northstar V-8 was introduced in early 2004. Fitted with a performance-tuned fully independent suspension, the GXP rides on 18-inch performance tires. The GXP also has General Motors’ StabiliTrak electronic stability system and leather-appointed seats.

For 2005, the SLE gains styling cues borrowed from the GXP, including its lower-body treatment. The standard OnStar communication system gains improved hands-free capability.

Bold styling identifies a Pontiac model among the crowd, and the Bonneville is no exception. Its design touches include a wedge profile, a sporty-looking twin-port grille and cat-eye headlights. Unique fascias, headlights, taillights and exhaust tips highlight the GXP sedan, which is equipped with a rear spoiler.

Measuring 202.6 inches long overall, the Bonneville is built on a 112.2-inch wheelbase. Cast-aluminum wheels on the SE hold 16-inch tires, while the SLE gets 17-inchers.

Bonnevilles can hold either five or six occupants. SE models are available with front bucket seats or a three-place front bench. Front head restraints move up and forward in a rear-end collision in order to be closer to the occupant’s head. A small pass-thru from the interior to the trunk is present, but the rear seatback doesn’t fold down.

In addition to leather-appointed seats with suede inserts, the GXP sedan gets a brushed-aluminum gearshift handle and carbon-fiber trim. A CD player with Monsoon sound entertains GXP occupants, who also benefit from dual-zone automatic climate control.

Under the Hood
The SE and SLE are equipped with a 205-hp, 3.8-liter V-6. The GXP’s 4.6-liter Northstar V-8 produces 275 hp and 300 pounds-feet of torque. Both engines team with a four-speed-automatic transmission.

Antilock brakes are standard on all models. Side-impact airbags are standard in the GXP and optional in other trim levels.

Driving Impressions
The Bonneville has long been considered a fine road car � among GM’s best, offering plenty of virtues to attract big-car fans. Because the regular V-6 delivers such strong performance, there’s little need for a larger engine. Drivers are likely to feel a welcome burst of acceleration when they push the gas pedal to pass or merge in a hurry. Still, buyers who crave power have the GXP model.

Handling on regular Bonnevilles fails to stand out, but these models steer with a light touch and respond capably to driver inputs and during cornering. In quick curves, body lean is noticeable but not dramatic. The SE rides comfortably most of the time and is very easy to drive. Rear-seat passengers get good legroom, with ample space all around.

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.9
  • Interior design 4.6
  • Performance 4.7
  • Value for the money 4.7
  • Exterior styling 4.8
  • Reliability 4.5

Most recent consumer reviews


Powerful and sporty, but small interior

This review is for the GXP trim. I love driving this car, its powerful, handles well, and looks really sharp. The car itself is very large, larger than most SUV's and minivans, however the interior is a bit cramped for how large it is. Overall it is mostly comfortable and fun to drive.


Good vehicle for a family

I love this auto! Been a great ride on the freeway& around town.Has a lot of punch when you need it.Very comfortable inside , extra roomy all around.



Solid car! GM should never had phased out Pontiac it should have been Buick!! Seriously ..AS far as styling and performance pontiac had hit it on the money. For an example look at Dodge very innovative creative they brought back oldies but goodies with a present twist run perform great.. but no..... GM HAS TO GO THE CHEAP WAY C'MON GENERAL MOTORS GET IT TOGETHER

See all 24 consumer reviews


New car program benefits
36 months/36,000 miles
72 months/100,000 miles
Roadside assistance
36 months/36,000 miles