BRISTOL, Tenn. — Kevin Harvick doesn't like Kurt Busch, and now maybe Matt Kenseth is mad at him, too.

Jeff Gordon was furious with Kenseth, and half the NASCAR field was fuming about something.

Ahh, just another day at Bristol Motor Speedway.

Busch used a brash bump on Kenseth, his friend and former teammate, to race his way into the lead with four laps to go on Sunday and win the Food City 500.

Afterward, Kenseth was none too pleased with the maneuver that gave Busch his fifth win in the past nine Bristol races.

"The only thing I know for sure is that if the roles would have been reversed, I absolutely would not have done that to him," Kenseth said. "It was as close as I came to wrecking and I worked hard for that spot all day and I didn't think that I should have got a cheap shot taken at me at the end of the race like that.

"I feel bad about that. I wouldn't have done that to him."

But Busch saw it a different way, and couldn't quite figure out what Kenseth was complaining about.

"Maybe I bumped him — I've been bumped before and have had a win taken away from me," Busch said. "I don't sit there and cry about it. I don't sit there and say 'Maybe I am going to wreck him the next week.' If I get bumped by Kenseth the next week, that's cool."

Nothing else was cool on a day that saw 18 cautions — and that was before the late-race fireworks.

Kenseth was leading and on his way to the win, but had slowed because he couldn't get past Dale Jarrett, who was fighting to stay on the lead lap. Tired of being held up, Busch rammed Kenseth's back bumper to send him into a slide. That allowed Busch to scoot on by and pull away to the win.

Meanwhile, Kenseth slid back and had to work his way back up to his third-place finish. Doing so involved accidental contact on the final lap that sent Jeff Gordon spinning all the way back to a 21st-place finish.

Still wearing his helmet and HANS device, Gordon stalked Kenseth on pit road. When Kenseth approached in what looked to be an apologetic way, Gordon gave him a hard shove that knocked him back several feet.

The two were quickly separated by NASCAR officials.

"I'm sure he didn't mean to do it and all that stuff, but I wasn't happy about it," Gordon fumed. "I showed it to him after the race. I like racing with Matt ... that stuff rarely happens with him. But I'm going to give it back what he gives to me."

Kenseth took full responsibility for the on-track altercation.

"That was my fault, it was an accident and I didn't mean to do it," Kenseth said. "I would be hot, too. He raced hard all day long for his third-place finish and it got taken away from him. I probably should have known better than to go over him."

And if that wasn't enough excitement, second-place finisher Kevin Harvick was none to pleased to have lost a race to his nemesis.

"Good day for us, but I hate to see Kurt Busch win," Harvick said. "He's a big whiner. But what do I know?"

Harvick used the entire weekend to make it clear how much he dislikes Busch, to the point it almost overshadowed Busch's win, which was his first since joining Roger Penske's team at the start of the season and taking over the famed No. 2 Dodge that nine-time Bristol winner Rusty Wallace drove.

Busch celebrated his victory by jumping from his car, grabbing the checkered flag and doing "snow angels" on the finish line as a nod to the wintry weather that plagued the track all weekend.

"This is unreal," Busch said. "I'm just so happy to be able to have this car and have Roger's privilege to do so."

Wallace, who missed his first Bristol race in 23 years because he was in his new job as an analyst for the Indy Racing League, called Busch in Victory Lane. During the call, Busch told him he was naming the winning car "Rusty."

"It was very emotional to drive his car," Busch said. "I mentioned to him I am going to name the car, and you could almost see that he had a tear in his eye."