Pontiac G8 GXP Street concept for SEMA
November 2, 2008 by George Skentzos
Holden will make an unexpected appearance at SEMA this year with General Motors having prepared a truly amazing show car with the Pontiac G8 GXP Street concept.
By combining GM’s two latest performance offerings, the Pontiac G8 GXP and the LSX454 crate engine from GM Performance Parts, the G8 GXP Street concept blitzes the W427 and outpaces the Corvette ZR1 for power.
As you may have gathered from its name, the LSX454 V8 engine displaces 454 cubes or 7.4-litres – certainly supporting GM’s philosophy that there is no replacement for displacement.
The end result from this atmospherically-aspirated V8 engine is 476kW and a colossal 813Nm – that’s over 100kW more than the W427 and 14kW more than the supercharged ZR1.
This is mated to the G8 GXP’s standard Hydra-Matic 6L80 six-speed automatic transmission, certainly giving credit to its capabilities and peace of mind for power-hungry potential owners.
Borrowed from the Cadillac CTS-V, stiffer springs produce a lower ride height as well as improving handling while an upgraded disc brake package helps to reign in all that power.
The custom 20-inch wheels shod in performance rubber all but hide the red brake callipers which feature CNC-milled GXP logos.
The exterior features custom front and rear bumpers highlighted by black chrome trim, creating a far more aggressive appearance.
The leather interior features embroidered “GXP” logos on the headrests, there is also a new gauge cluster, unique graphics and the silver-finish factory trim has a new, black-chrome, metallic look.
Holden will also make a second appearance at this year’s SEMA Show with a slightly modified version of the new G8 ST.
Source: GMInsideNews










That definitely needs to be the new front end of the SSV+ etc…Hot!
The rear has a ‘race-style’ rear diffuser… but there are no photos. :(
The sedan looks really really good, the rims are pretty different.
The one thing I’d pick on is the size of that front grill.
The ute looks like crap. What is that? Lipstick red
At a guess i would say the front end on the ute will be the VF’s SS front end minus the pontiac grill.
And the front on the sedan will become the HSV’s front end i reckon.
It is not far off from being a 8 litre V8..
all that power is useless unless it has the brakes, suspension, steering rack, and gearbox to properly put that power to the ground in track conditions.
I also think the looks of the Sedan just doesn’t suit the amount of power the engine has. Knowing that it’s a commodore with a shoe-horned engine just doesn’t seem right. These are supercar numbers in a taxi shell. It doesn’t even have the mean appearance of the HSV cars available here in OZ, what gives??
The Air Dam on the new SS will be the same as that on the Coupe 60 Concept.. HSVs are expected to use the same Air Dam as the Limited Edition W-427
Yep, a 7.4-litre engine is what GM needs to get it out of trouble.
Clueless.
John, have you not driven a VE? Sure the powertrain isn’t quite up to scratch in V6 guise but the SSV is certainly one of the best handling cars I’ve ever driven. Better than my last Merc 5.0 V8, and somewhat similar to recent BMW’s.
Taxi SHELL is right, because the important mechanicals have been upgraded/replaced, as the article states, so why all the doubt about the package?
From what I seen around traps Holden is struggling worldwide and has had bigger loss last quarter then expected. Trouble times ahead for Holden/GM and it does look truly still rosy for Toyota (to be accurate)!
Loss as in numbers huge percentage down compared to previous quarters and same period last year. Year to date worldwide is 300,000units behind Toyota!
Wheelnut Says:
November 2nd, 2008 at 6:31 pm
The Air Dam on the new SS will be the same as that on the Coupe 60 Concept.. HSVs are expected to use the same Air Dam as the Limited Edition W-427
Hmmm Bet everyon who shelled out $140k for the 427 will be happy that the 60k “povo pack” Clubby will look the same in someones rear view mirror ;-)
Naughtyius Maximus Says:
November 2nd, 2008 at 8:46 pm
Pity Toyota aren’t feeling as bright and bubbly about their immediate future, long way down in both numbers and profit on their own global forecasts………
Front end looks hot & the rims scream look at me! Just a shame that in 3 months time there will be cheap “knock offs” of these rims on VL Turbos & fully sic VS commodores!