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Originally Posted by RICKYRJ1
Can somebody explain to me the different GT classes? Who & what runs in where? I beleive Corvette moved from GT1 to GT2? Cadillac is running this year? Thanks in advance  |
Basically GT1 cars are extremely modified. The GT1 Corvette had a custom chassis, carbon brakes, a crapload of aero, direct injection engine that ran on ethanol, and was crazy light. Basically it was a bad-*** race car with some Corvette-inspired body panels hung on it.
GT2 is more production-like, "cheaper" (that's the idea of the series anyway), and slower. It uses an actual Corvette chassis. The motor is more similar to a production one, though I believe still uses the racing block from the GT1 cars.
You can find some info here:
http://www.corvetteracing.com/cars/g...t2-chart.shtml
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Cadillac is racing in the SCCA World Challenge series. This is a different sanctioning body, and a different series. I believe there are Corvettes that run in World Challenge, but they are not the factory team.
Cadillac ran in this series with the first generation CTS-V sedan, as well (was called Speed World Challenge then).
In spite of the radical appearance, the cars are actually highly based on the production car. They use a production car chassis, and you can usually even see parts of the production dash still in place (albeit hacked up pretty good).
You can find a pretty readable summary of the rules for each class, and how the car can be changed from stock, here:
http://www.world-challenge.com/series.php?page=carfacts
Cadillac races in GT, if I'm not mistaken.
World Challenge races are also very short, like an hour. Vs ALMS races that are 3-4 hours on up to 10-12 hours.
You can catch the Cadillacs racing on April 9th on the "Versus" channel, though the race happened a week ago.