Review: 2009 Pontiac G8 GXP

Michael Karesh
by Michael Karesh

This site is not generally known as a fan of GM’s cars. And yet TTAC has lavished much love upon Pontiac’s thunder from down under: the G8 GT. The general line: if the 361-horsepower V8 version is magic, the 415-horsepower GXP should be an automotive miracle. Especially as the GXP offers the option of a manual gearbox. So, did Pontiac save its best car ever for last?

The Pontiac G8 GXP includes model-specific 19-inch wheels and a more aggressive front fascia. If you were expecting something more distinctive, you’re SOL. Just like the G8 GT most people will mistake it for, the GXP is a tasteful (aside from the hood scoops) homage to BMW’s E46 M3—that lacks the visual punch of Chrysler’s large SRT sedans. For all the talk that tastefully reserved pre-Bangle BMWs were da bomb, the Pontiac G8 proves that subtle styling doesn’t attract buyers to a new model.

The G8 GXP’s roomy (this is a LARGE sedan) cabin is virtually identical to that of other G8s. It’s dark and functional (i.e., dreadfully austere). Another homage to the way BMWs used to be? Like those traditional Bimmer interiors, the G8’s cabin says “only serious drivers need apply.” Well, there’s one exception: the seats. They’re comfortable, but as in other G8s the side bolsters could be more aggressive.

The 361-horsepower G8 GT doesn’t feel as quick as the specs suggest. Blame an overly muffled exhaust and an insufficiently responsive automatic transmission. The GXP provides solutions: another 54 horsepower, a louder (thankfully only when you push it) exhaust system and the option of a six-speed manual transmission. Of the three, the extra horses are probably least necessary, and probably aren’t worth the toll they take on fuel economy.

[Quick aside: the G8 GXP’s EPA ratings fall from 15/24 to 13/20, incurring a $1,700 gas guzzler tax. The problem isn’t so much the extra displacement as the elimination of cylinder deactivation. Not a good call with the automatic, but probably unavoidable with the manual. To further maximize the EPA ratings (how bad would they have been otherwise?), the manual shifter skips from first to fourth in relaxed driving. Diehard pistonheads may complain; in practice, it’s not an issue. If you’re not pushing the car, the engine has more than enough low-end torque to motivate the G9 GXP even in fourth gear. If you are pushing the car, the shifter won’t skip second and third.]

The Pontiac G8 GXP’s medium-throw shifter and low-effort clutch don’t annoy in traffic or frustrate in hard driving. You won’t mistake them for those in a Miata or S2000, but they’re far better than those in the Pontiac GTO and first-gen CTS-V. Again, pair a manual cog-swapper with the G8 GXP’s appropriately throaty 415-horsepower 6.2-liter V8 and you’ve got a large sedan that not only is quick, but feels quick. Need to scrub some speed? Big GXP-only Brembos make the task easy.

Get on the gas in a turn, and oversteer happens. No surprise, given the pounds-feet in play. And yet the G8 GXP won’t be coming soon to a ditch near you. Especially with the direct linkage provided by the manual transmission, the G8 GXP oversteers in such a predictable linear fashion that right-foot steering is the default option.

Push too hard despite clear feedback through the seat of your pants? A touch of countersteer restores your intended line. (The standard stability control doesn’t kill the fun until it stops being fun.) Though the steering isn’t quite as communicative as the chassis, the G8 GXP’s handling could hardly be more intuitive. Step up the tempo, and the G8 shrinks around you. It feels much more tossable than a 196-inch-long, two-ton sedan has any right to. Even some of the world’s thickest A-pillars barely dent driver confidence. Simply put: you won’t find a large sedan that’s more fun to drive.

The GXP’s suspension tuning is just a scosh firmer than the GT’s. Those seeking a hardcore feel might be disappointed. Those seeking a livable ride won’t.

And so, while the G8 GXP could make a stronger styling statement, it’s the best all-around driver’s car the brand has ever offered. Still, there are two big problems. First, the G8 GT is nearly as much fun to drive, while getting substantially better gas mileage and costing over $6K less. Clutch-avoiders should buy the GT, then spend a fraction of the savings on a sweet-sounding aftermarket exhaust.

But if you want a large sedan with a manual transmission, then the G8 GXP is not only the best game in town, it’s the only game in town. Which brings us to the second big problem: this game is leaving town. With the Pontiac brand headed for the dustbin, all G8s will soon be gone. Get one while you can.

Michael Karesh
Michael Karesh

Michael Karesh lives in West Bloomfield, Michigan, with his wife and three children. In 2003 he received a Ph.D. from the University of Chicago. While in Chicago he worked at the National Opinion Research Center, a leader in the field of survey research. For his doctoral thesis, he spent a year-and-a-half inside an automaker studying how and how well it understood consumers when developing new products. While pursuing the degree he taught consumer behavior and product development at Oakland University. Since 1999, he has contributed auto reviews to Epinions, where he is currently one of two people in charge of the autos section. Since earning the degree he has continued to care for his children (school, gymnastics, tae-kwan-do...) and write reviews for Epinions and, more recently, The Truth About Cars while developing TrueDelta, a vehicle reliability and price comparison site.

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  • PowerPro01 PowerPro01 on May 09, 2009
    JEM: I’ve gotten BMW and Acura owners to drive the G8. They all come away impressed with the car but they won’t buy a Pontiac. In response: The begged question is, WHY NOT? Is it Dealer, or Brand, or Manufacturer-related? Buying a G8 GT for close to half the price of a 540 shouldn't be difficult to rationalize, unless these folks are terribly concerned with their golfing partners' opinions... I suspect if less TARP-bucks went to bonuses, the G8's "place" would broaden... This harkens back to the Catera, an Opel with another badge, and the fact it was NOT considered a "Cadillac" initially. Could have been marketed as anything, at a slightly reduced price, and sold more units. Instead, it was the precurser to the CTS, sold as a Caddy to establish an entry-level, "near-Luxury" market presence. The CTS took over, thankfully, and the rest is history. As to earning higher margins, price DOES play a part in the marketplace. Lower price (and lower margin) equates to higher volume, higher penetration and therefore higher market share, with all its attendant service/parts opportunities. We currently see what the reverse shows with BMW, who are now showing lo$$e$ in this dreadful marketplace with their "smarter" lower volume/higher margin lines. And the vaunted world-slaying Toyota, now with 4 "Divisions" (Toyota/Scion/Lexus/Trucks) like the "GM-Revised", is racking up lo$$e$ that make GM look downright fiscally responsible and/or more market-correct... Of course Buick CAN attain higher margins...just build 'em all someplace other than the U.S....that's the route "all successful multinationals" are using... The trouble with THAT scenario is, there'll be many thousands of fewer potential Buick buyers, here...but there's ALWAYS China to broaden Buick's horizon... Back to topic: My original point, and it's not-so-obvious irony (to some) was Y2K..."G8" et al in its many guises and THEN-market potential...and Aztek...(roughly equal development dollars, at that time), and what might have been, had someone "zagged"... The Commodore, then, was a no-brainer (gee, I even saw that...), fully 'WAY overdue, come MY 2009... Instead of "party time at Pontiac", it was more like an "Irish wake"... Sad...
  • JEM JEM on May 09, 2009

    PowerPro01 - there's a lot of factors. Depreciation. Uncertainty - over GM, over dealer service, over the durability of the car, etc. And the material quality and content, while adequate at about a US-made-Camry level and maybe a tick better than its most direct competitor (the 300C and Charger), isn't a big selling point for those used to German or upscale Japanese (just about everyone who looks at a G8 comes away and says "Nice car. Really nice car. Can't they do better on the parking brake handle?" And then there's the "Where's the nav?" folks...) I've been screaming to the high heavens about Aussie hardware for about a decade, I've had occasion to drive some nice examples in their natural habitat. They just do great, useful vehicles. Tons of interior room, more than any American car (even FWD ones) of similar size. Outstanding real-world chassis. The 5.4L Falcon GT I rented a couple years back had the best eight-hour seats of any car I've ever driven - super-comfy but still aggressively bolstered.

  • David Murilee Martin, These Toyota Vans were absolute garbage. As the labor even basic service cost 400% as much as servicing a VW Vanagon or American minivan. A skilled Toyota tech would take about 2.5 hours just to change the air cleaner. Also they also broke often, as they overheated and warped the engine and boiled the automatic transmission...
  • Marcr My wife and I mostly work from home (or use public transit), the kid is grown, and we no longer do road trips of more than 150 miles or so. Our one car mostly gets used for local errands and the occasional airport pickup. The first non-Tesla, non-Mini, non-Fiat, non-Kia/Hyundai, non-GM (I do have my biases) small fun-to-drive hatchback EV with 200+ mile range, instrument display behind the wheel where it belongs and actual knobs for oft-used functions for under $35K will get our money. What we really want is a proper 21st century equivalent of the original Honda Civic. The Volvo EX30 is close and may end up being the compromise choice.
  • Mebgardner I test drove a 2023 2.5 Rav4 last year. I passed on it because it was a very noisy interior, and handled poorly on uneven pavement (filled potholes), which Tucson has many. Very little acoustic padding mean you talk loudly above 55 mph. The forums were also talking about how the roof leaks from not properly sealed roof rack holes, and door windows leaking into the lower door interior. I did not stick around to find out if all that was true. No talk about engine troubles though, this is new info to me.
  • Dave Holzman '08 Civic (stick) that I bought used 1/31/12 with 35k on the clock. Now at 159k.It runs as nicely as it did when I bought it. I love the feel of the car. The most expensive replacement was the AC compressor, I think, but something to do with the AC that went at 80k and cost $1300 to replace. It's had more stuff replaced than I expected, but not enough to make me want to ditch a car that I truly enjoy driving.
  • ToolGuy Let's review: I am a poor unsuccessful loser. Any car company which introduced an EV which I could afford would earn my contempt. Of course I would buy it, but I wouldn't respect them. 😉
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