Need Help?

2008 Pontiac G8 GT 4dr Sedan

2008 Pontiac G8
Trim Info:
Rear Wheel Drive, 4 Door Sedan, Midsize Sedan
15 mpg city / 24 mpg hwy
Other Trims
Do you own this car?
Estimated Mileage
Enter current mileage for most
accurate info about this vehicle

Track Your Service Records
Get Recall Alerts
Get Updated Value Estimates on Your Car.

Expert Reviews

May 4, 2019 by Alison Lakin, Associate Editor

2008 Pontiac G8 1
2008 Pontiac G8

DriverSide Overview
Beleaguered Pontiac has struggled to find an identity in recent years - don’t think we’ve forgotten the Aztek – but there’s a beacon of hope on the horizon, and they’re calling it the 2008 Pontiac G8 GT. Being touted as the savior of this troubled brand, the G8 is Pontiac’s new flagship vehicle, and rightly so. After driving it, we’d have to agree that Pontiac will no doubt have a turn of luck with the debut of this Australian built, V-8 powered rear-wheel drive sedan with horsepower to burn and a 0-60 time of 5.3 seconds. And, yes, it feels that fast. Masking its muscular performance are an upmarket, sophisticated exterior design and a comfortable and stylish interior, all for just under $30,000. The G8 GT is wolf in sheep’s clothing, poised to take on the best Europe has to offer at half the price.

What's to Like
The Pontiac G8 GT is the most powerful passenger car in America under $30,000! Enough said.

What's Not to Like
The large, cartoonish digital gauges displaying oil pressure and battery voltage are located smack dab at the top of the instrument panel and can’t be turned off. Your options are pretty limited; there isn’t an available navigation system, satellite radio or manual gearbox. Gas mileage is, as Mary Poppin’s says, something quite atrocious. See previous “What’s to Like" section if you’re feeling discouraged.

The Drive:
DriverSide Driving Impressions

Get ready to do some doughnuts and hear the American, er, Australian, V-8 roar around. Mashing the throttle delivers power almost immediately to the rear wheels via a six-speed automatic transmission and provides addictive, neck snapping, tire squealing, knuckle whitening exhilaration. While the normal drive mode is perfect for city driving, we wouldn’t fault you if you never took the transmission out of sport mode, which provides even more on demand power by altering the shift points to stay in gears longer and use all available engine power. Handling is the only glaring issue with the G8’s drive quality; it’s certainly not up to the Germans’ precise standards. Straight shots and long, loose turns are navigated brilliantly, but tight hairpins can feel a bit unwieldy in this 4,000-pound car. It’s the only time we were reminded that there was room for three behind the driver’s seat.

Engine and Drivetrain
The G8 GT is powered by a 6.0-liter V-8 sequential fuel injection engine, which produces 361 horsepower and 385 lb-ft of torque. The lack of a manual gearbox, an option that is provided on almost all of the competition, will disappoint the most avid driving enthusiasts. However, we were pleased to find that manual mode, controlled by tapping the shifter up and down, is incredibly responsive and will eagerly hold the redline at 6,000 rpm. We’d have loved to see the V-8 push out even more power, but that day will come in late 2008 when the G8 GXP version arrives stateside, boasting 402 horsepower. 

Interesting Vehicle Features and Options
For more comfort-oriented trimmings beyond the standard air conditioning, power windows and front, side and curtain airbags, the premium package ($2,150) is available with leather seats, heated and power front seats, a leather wrapped shift knob and steering wheel and sunroof. If you don’t need the sun on your head, the $1,850 sport package, combined with the premium package sans the sunroof, adds sport metallic pedals, 19-inch wheels, up from the standard 18-inch, and adds summer performance tires. A standard Blaupunkt audio system reaches your ears through 11-speakers, 230-watts, a sub-woofer and a six-CD/MP3 changer. The system’s equalizer functionality, accessed by a large button on the center stack, really makes a difference in the sound quality. Try listening to the new Britney Spears song on the “pop" setting. You know you want to.

Key Technology Evaluation
Lack of high-tech features is where the G8 falls short of its European and Japanese rivals, who have convenient options available like rear park assist. Though, the minimal technology helps the G8 maintain its low sticker price. On the mechanical side, the G8 comes equipped with the Stabilitrak stability system, which allows the driver to maintain control of the sedan through variable road conditions by engaging suspension, steering and braking stability systems when necessary.

Green Evaluation/Gas Mileage
The power-hungry G8 GT gets 15 mpg in the city and 24 on the highway. This is in line with other gas-gulping V-8s, and much more impressive than the Dodge Charger SRT8, with its 13 mpg city and 18 mpg highway. Thanks to the Pontiac’s long sixth gear, the GT’s fuel economy isn’t too far off from the 6-cylinder, five-gear base model, which gets 17 mpg in the city and 25 on the highway. This LEV-II rated car also has an active fuel management system, found on GM vehicles like the GMC Yukon Hybrid, which operates only half of the cylinders when the engine power isn’t needed, preventing unnecessary fuel consumption.

A Closer Look:  Vehicle Details

Pontiac, not known for its upscale interiors, has taken a huge step forward with its flagship’s interior. The black, or optional red and black, interior boasts simple lines and brushed metal accents, and the streamlined center stack takes cues from perfectionist German manufacturers. Legroom in the rear is capacious for its class, and the middle rear seat folds down to create a ski pass through to the trunk, big enough to fit three snowboards.

The G8 GT’s aggressively designed exterior gives more expensive competitors like the Audi A6 a run for their money. The front fascia still sports the signature split grille, but it looks more modern and classier than some previous Pontiac models. The spoiler has been softened from the large Australian wing to a subtle lip, a decision that adds a sense of maturity to the exterior.

Market Segment and Pricing
The G8 GT skirts just under the $30,000 mark at $29,995, just $2,400 more than the base G8. At this price, the Pontiac will excite previous European brand buyers who want less bells and whistles and more good, old-fashioned V-8 power for about 30K less than what they’d be paying for a car like the BMW 550i. It may also sway former buyers of the Mitsubishi Lancer Evolution or the Dodge Charger SRT8, both of which are priced higher than the G8.

What We Think
The lack of options, like a navigation system, might smart a little at first, but we think you’ll quickly overlook them once you take a spin in this car. The Pontiac G8 GT is a performance car first and passenger car second, so who cares if you’re lost on a twisty back road? The fact that this car can seat five comfortably and has 17.5 cubic feet of cargo room is really just the icing on this deliciously devilish cake.

Other Resources

First Drive: 2008 Pontiac G8 – Filed under: Garage, Sedans/Saloons, PontiacClick above for a high-res gallery of the Pontiac G8 First Drive.Here's a question: what builds excitement? For Pontiac, the General's erstwhile "excitement" division, the answer hails from Oz. No, it's not Source:

First Test: 2008 Pontiac G8 GT – It's all done with smoke in the mirrors Source:

2008 Pontiac G8 Spotted, Decked Out In Racey Duds [2008 Pontiac G8] – We're big fans of the Aussie import that is the Pontiac G8. If it's ever revealed, we' ll be even bigger fans of the Pontiac G8 ST. Then last night we saw this. On the way to happy hour we caught this Pontiac G8 in Royal Oak with all manner of lovely Source:

Comparison Test: 2008 Pontiac G8 GT vs. 2008 Dodge Charger R/T – Down Under Siege: Pontiac's toothy new lizard from Oz rumbles into Dodge Hemi territory. The forecast calls for clouds of tire smoke. Source:

New Pontiac G8 GT Commercial Gives "Spy Hunter" A Sweet-Ass Twist [Ad Watch] – OMG, Pontiac finally has a decent rear-wheel drive sedan in the 2008 Pontiac G8 GT and now they've got a killer commercial to go along with it. The boys from the arrow-headed brand have mashed up "Spy Hunter," the classic Midway video game with the G Source:

Pontiac G8 GT Slams BMW 5-Series In Poetic Verse [Ad Watch] – From the book of car, whatever that is, comes the latest in the march of ads for the Pontiac G8 GT. We all thought the Spy Hunter commercial was clever, and the Hot Wheels one was slick too. This new web-only commercial turns it up a notch, taking th Source:

2008 Pontiac G8 GT Review – The first time GM attempted to create a BMW 3-Series fighter, we got the Cadillac Cimarron. After 27 years of trying again (and again and again) to take on the rear-wheel drive driver's car, we've got a rebadged Australian import that goes b Source:

Bargain barnburner: Pontiac's sweet G8 GT sedan sells itself – When we first drove an engineering prototype of the Pontiac G8 GT ("Scary Sedan!" AW, Nov. 26, 2007), we were thrilled with it, and for good reason. Source:

APS builds 557 hp twin-turbo setup for Pontiac G8 GT – Filed under: Aftermarket, Tuners, Sedans/Saloons, Pontiac, Holden, HSVClick above for a gallery of the turbocharged APS HSV Commodore.APS is in the business of making power and that's exactly what they've done for the new Pontiac G8 GT and its Aussie Source:

2008 Pontiac G8: – OUR TAKE: The G8 scores high on the comfort scale. The cloth-covered front seats are deeply sculpted, with beefy side bolsters that allow you to settle in and stay planted. Source:

Comparison Test: 2009 Nissan Maxima 3.5 SV vs. 2008 Pontiac G8 GT – No doubt some of you are already heading for the drop box marked "hate mail." Front drive versus rear drive? V-6 versus V-8? Why don't you just compare apples and orangutans?As we see it, if you've got around $30,000 to spend on a sport sedan, you wa Source:

Updated: Top Ten Cars for Dads – Since I'm on this whole Top Picks kick, I thought I'd get a jump on Father's Day by updating my Top Ten Cars for Dads. Most of my Top Ten... Source:

Review: 2008 Pontiac G8 GT – (Credit: Corinne Schulze/CNET Networks) With a 6-liter V-8 and brawny styling, the 2008 Pontiac G8 GT looks like the return of American muscle, only, it's not. The new G8, an example of International brand engineering, actually comes from Australia, Source:

Nissan GT-R, Mazdaspeed 3, Chevrolet Corvette Z06, Mitsubishi Lancer Evo, Pontiac G8 GT - Giant Kill – Nissan GT-R, Mazdaspeed 3, Chevrolet Corvette Z06, Mitsubishi Lancer Evo, Pontiac G8 GT - Giant KillersAlthough they may be humble in some respects, they all five turn, stop, and go - particularly, go - with the brio of competitors costing thousands Source:

Pontiac Forums – Interact with the Pontiac community. Source:

2008 Pontiac G8 GT Take Two – When it comes to cars from General Motors, I’m always prepared for disappointment. No matter how promising the new vehicle is (Corvette!), GM finds a way to let me down (Corvette seats!) Take the Pontiac Solstice GXP. Flat gorgeous. More important, Source:

Your Local Mechanics

New Search: