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" CHICAGO \u2014 Pontiac unveils a show version of its upcoming 2008 G8 performance sedan at the Chicago auto show. The show G8 differs only slightly from the production model G8 that will be introduced in Pontiac dealerships &amp;quot;early next year.&amp;quot;  The &amp;quot;performance&amp;quot; label on the show car relies on a number of mechanical features, including:   20-in. performance tires 1/2-in. lower ride height high-performance brake rotors V8 engine rated at 362 hp from 6.0-liter displacement six-speed automatic transmission rear-wheel drive.   When the production G8 hits the showrooms in 2008, two models will be available: the base G8 and the high-performance G8 GT. They will differ from the show model in a number of areas:  Standard wheels will be 18 in., with 19-in. wheels available. Four-wheel disc brakes, ABS and traction control will be standard along with a stability control system. A sport package option will be offered with rear spoiler, 19-in. tires, leather shift knob and leather wrapped steering wheel. Two engines will be available: a base 2610-hp, 3.6-liter V6 and an optional 362-hp V8. Transmissions are a five-speed for the V6 and six-speed for the V8\u2014both automatics.   Note that the label of &amp;quot;all new&amp;quot; that Pontiac pastes on the G8 is not exactly accurate. The car is based on an Australian Holden design and will be built in Australia, just like the Pontiac GTO. However, the two vehicles\u2014the G8 and GTO\u2014are not two versions of the same design. Besides the obvious difference in one being a four-door the other a two-door coupe, the G8 offers different styling inside and out. Wheelbase and overall length measures are significantly different, too, with the G8 being the much larger vehicle. \u2014Jim Dunne 2008 Pontiac G8 (CLICK TO ENLARGE) "^^<http://www.w3.org/2001/XMLSchema#string>
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