Penske, meanwhile, has won all four of the IndyCar races so far this season and driver Will Power is leading the series standings as they prepare for the May 27 Indianapolis 500. For now, though, the team owner is thinking about where Keselowski can take him.
Penske has never won a Cup title since entering NASCAR in 1972, although he was out of the series from 1981 through 1990. Keselowski gave him a Nationwide Series championship in 2010, his only NASCAR title.
"Obviously, one of the goals in my life is to sit up on that stage (at the championship banquet), and I think he's the guy that can make it happen this year," said Penske, who called it the perfect race.
That might be going a little too far, which even Keselowski would admit.
He helped cause a caution with seven laps to go when he ran into the back of former Penske teammate Kurt Busch. Keselowski was apologetic immediately after climbing from his car in Victory Lane.
"I got to Kurt and tried to push him. He tried staying in line. He didn't want to go," Keselowski said. "He probably didn't know what was going on behind him, which is natural. When he decided not to go, I tried to force him to go. It was a combination of events that were unfortunate. I hated to see that happen."
On the restart with four laps remaining, Penske's other driver, AJ Allmendinger, was part of the accident that stopped the action again.
It was the last of five cautions in yet another race that featured fairly clean racing. NASCAR's now had six consecutive uncharacteristically clean races, which drew a tongue-and-cheek response from defending series champion Tony Stewart, who was collected in the Allmendinger accident.
"I'm upset that we didn't crash more cars," said Stewart, who finished 24th. "That's what we're here for. I feel bad if I don't spend at least $150,000 in torn-up race cars going back to the shop. We've definitely got to do a better job at that."
Kasey Kahne finished fourth and was followed by Biffle, Clint Bowyer and David Ragan. Trevor Bayne was eighth, Dale Earnhardt Jr. ninth and Jeff Burton rounded out the top 10.
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