DAYTONA BEACH, Fla. (AP) -- Kyle Busch used a last-gasp pass of defending NASCAR champion Tony Stewart to grab the first win of the 2012 season at Daytona International Speedway.

Busch pushed Stewart to the lead on the last lap of Saturday night's exhibition Budweiser Shootout. Then Busch ducked to the outside of Stewart as they closed in on the finish line and beat him by .013 seconds to the checkered flag.

Busch used two brilliant saves earlier in the race to remain in contention for the win.

The 75-lap race was marred by two big accidents as NASCAR successfully split up the two-car tandem racing that dominated at Daytona and Talladega last season. A series of rules changes pushed the style back to pack racing, and the end result was multiple-car accidents.