[ GM Racing USA ]
GM teams won two championships this weekend in multiple season-ending races. Cadillac earned the GT manufacturers championship in the SCCA SPEED World Challenge while Team Chevy's Gary Gardella clinched his first NHRA Pro FWD championship. Chevy's Jimmie Johnson also secured his 30th career victory in the NASCAR Nextel Cup Series while taking the 23rd win for Chevy in the '07 season. ...

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