Originally Posted by CarSoup.com

The base G8 will come with a 261-horsepower, 3.6-liter V6 engine linked to a five-speed automatic transmission. The G8 GT gets a 362-hp, 6.0-liter V8 with nearly 400 pound-feet of torque that will reach the rear wheels through either a six-speed automatic or six-speed manual transmission.
Pontiac says the G8 GT will be capable of accelerating from a standing start to 60 miles per hour in a mere 5.5 seconds. Excitement, indeed! To enhance the G8's dynamic dexterity, its steering rack will be mounted ahead of the front axle. The car will be equipped with four-wheel independent suspension (struts in front, multi-link in the rear). It also gets four-wheel disc anti-lock brakes. Brakes on the base model will be 11.73 inches in diameter on the front wheels and 11.89 inches at the rear; the GT gets 12.64-inch front discs and with 12.76 rears. All 2008 Pontiac G8 models will come with electronic stability control as standard equipment, which improves driver control, even in inclement weather. Eighteen- and 19-inch wheels and tires will be available. The GT gets a limited-slip rear differential to help keep all that power under proper control.