Kyle Busch hasn't mellowed after his last-lap accident at Daytona that sent him into the wall, and then the infield care center -- even as points leader Tony Stewart says all is fine between the two former teammates.

Busch claimed Stewart "dumped him," or, caused him to wreck, and questioned if drivers should be allowed to win if they cause an accident that lets them take the lead.

"I think NASCAR can take a step in looking at it, and if the second-place driver bumps the leader, then black-flag [him]," Busch said yesterday at Chicagoland Speedway. "He doesn't get the win."

At Daytona, Busch took the lead on the next-to-last lap and tried to fend off a hard-charging Stewart. He successfully blocked Stewart once, but when he tried to do it again Stewart hooked Busch's right rear fender instead, sending Busch into the wall a few hundred yards from the finish.

Stewart called the accident a part of racing and said the two drivers were on the same page after a 30-minute conversation about the circumstances of the wreck earlier this week.

Same page? Busch came out yesterday and made it seem like he wasn't even in the same book.

Stewart declined to address Busch's comments, and said he only was going to judge Busch's view of the incident based on their earlier conversation. When Stewart was asked if his maneuver was considered a "dump," he said, "I'm not biting."

Dale Earnhardt Jr. would jump at the chance to drive in the Indianapolis 500 if there were not a conflicting NASCAR race on the same day. "Should the schedules work out one day, I think you'll find a lot of [NASCAR] guys interested in coming here and running the Indy 500," said Earnhardt, who was at the track to promote the July 26 Allstate 400 at the Brickyard.

Formula One's leading teams revived their threat to form a breakaway series despite the sport's governing body insisting that a deal to end the long-running saga over regulations could be reached in days. F1's fragile peace was thrown into doubt again Wednesday when the Formula One Teams Association walked out of a meeting with the FIA after being told they had not been entered into the 2010 championship and would have no say in finalizing cost-cutting measures. FIA issued a statement in response to the teams' walkout in which it said that ongoing negotiations would yield a solution quickly.