BUSCH: Cup drivers batter regulars in Fontana.

Nextel Cup drivers claimed the top eleven finishing positions in Saturday's NASCAR Busch Series race at the California Speedway, with Greg Biffle taking the chequered flag first.

After taking six of the top seven positions in qualifying for the Stater Bros. 300, the 'Buschwackers' simply destroyed the series regulars in the 150 lap race at the two-mile oval, leaving only six non Nextel Cup drivers on the lead lap at the finish.

Biffle finished ahead of Ryan Newman, pole-winner Carl Edwards, Jeff Burton and Jamie McMurray with Matt Kenseth JJ Yeley, Kevin Harvick, Brian Vickers, Denny Hamlin and Reed Sorensen completing the Nextel Cup lockout.

Todd Kluever, who drives for Jack Roush, was the best placed non Nextel Cup driver in 12th place, although Scott Wimmer (14th) and Clint Bowyer (16th) also finished in the top 20, giving the Nextel Cup 13 of the top 16 finishers.

Not every one of the 19 Cup drivers enjoyed rich pickings in what is seen as a crucial warm-up race for Sunday's Auto Club 500, with Casey Mears retiring after 121 laps and Kyle Busch, Michael Waltrip, Elliott Sadler, Kenny Wallace and Jeremy Mayfield all finishing outside the top 20.

After two rounds of the championship, Kevin Harvick heads the standings, with seven of the top ten drivers coming from the Cup Series.