WATKINS GLEN, N.Y. — There was no slipup on the final lap this time, so Kyle Busch's victory celebration at Watkins Glen International was as sweet as it gets. Bumped aside a year ago by Brad Keselowski on the final lap as they sped around an oil-covered track, Busch held the reigning Sprint Cup champion at bay on a two-lap dash to the checkered flag Sunday. Busch kept his foot on the accelerator a tad longer than usual during his postrace burnout, even sticking half his body out the window while smoke swirled all around and the tires kept churning.