FONTANA, Calif. — Jimmie Johnson somehow saved his fastest lap for last, and Southern California’s favorite racing son soared to another historic victory.

Johnson pulled away in overtime to beat Kevin Harvick on Sunday for his record sixth NASCAR Sprint Cup Series win at Fontana.

With his 77th career victory, Johnson passed Dale Earnhardt for seventh place in NASCAR annals. And he did it in style: Johnson was third on the late restart, but he surged past leader Denny Hamlin while giving a little bump to Harvick before side-drafting and pulling away.

After showcasing his famed skills to snare another landmark win, the 40-year-old Johnson got a bit reflective when asked about his place in the sport.

“I feel like physically and mentally, I’m the best that I’ve ever been in my career,” the six-time series champion said. “I’m in the space I want to be in, which makes me want to stick around and do this for a lot of years. There’s no guarantees about when you’re going to win and have success, so I’ve been very, very fortunate to win 77 of these things, which blows my mind.”

Johnson finished with his fastest lap of the race to claim his second overtime win of the young season, adding Fontana to Atlanta. He has won three of his last eight races.

Harvick was in position to win for the second consecutive week before second-place Kyle Busch blew a tire with two laps to go. Hamlin got off pit road first for his first lead of the race, but Johnson’s fresh tires and cleverness gave him the speed needed to get ahead.