SEMA 2008: Pontiac G8 GXP Street Concept

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Both the Pontiac G8 GXP and the LSX454 crate engine from GM Performance Parts are new this fall. GM engineers figured there was no better way to highlight them than combining them in an intimidating street machine.

In factory form, the G8 GXP features a 6.2L (376-cu.-in.) V-8 rated at 415 horsepower (309 kW) and 415 lb.-ft. of torque (562 Nm).

G8 GXP Street Concept features the new LSX454 that has 7.4-liters with 638 horsepower (476 kW) and 600 lb.-ft. of torque (813 Nm).

Backing the LSX454 is the GXP’s Hydra-Matic 6L80 six-speed automatic transmission.

G8 GXP Street Concept has been lowered for bett handling, it also has stiffer springs and a disc brake package borrowed from the Cadillac CTS-V.

The exterior of the silver G8 GXP Street concept wears custom front and rear fascias and new rocker panels that give it a more aggressive appearance. The front fascia features unique upper and lower grilles, while the rear fascia incorporates a racing-style diffuser. All of the exterior bright trim has a black chrome finish. There’s also a performance exhaust system with custom-cut aluminum tips exiting through the rear fascia.

Source: GM Inside News