Photo by Matt Fraver, Indycar

Will Power had the quickest time in the only practice session for the Chevrolet Grand Prix of Detroit this afternoon. Sébastien Bourdais looked as if he would lead the 75 minute period, but Power’s final lap put him on top.

The three rookies all had on track issues.Jimmie Johnson spun into the tires in turn 3 and Scott McLaughlin spun in turn 5 just moments later.Romain Grosjeqn spun but kept the carrunning and returned the track later in the session.

Power talked about the heat today, where the track temperature reached 120 degrees.

“Yeah, it’s very hot out there,” Power said. “It’s just a physical track. You kind of hold your breath because there’s just so much commitment. I feel all right. The car is in a really good window. I was happy to get a lap in there at the end, with some guys backing up and such.”

It was a good showing for Chevrolet in their home race as cars powered by the Detroit made engine took the top three spots. Honda and Chevy each had five cars in the top ten.

Points leader Alex Palou was mired in mid pack most of the session. Palou has a six place grid penalty for tomorrow’s race, so a high qualifying spot is crucial for him.

The results:

Qualifying begins at 11 am EDT tomorrow.