Ryan Briscoe posted the fastest lap Friday in the first practice for Saturday night's 500-mile IndyCar race at Auto Club Speedway in Fontana.
The Team Penske driver turned a lap of 217.517 mph on the two-mile oval as temperatures climbed above 100 degrees in Fontana, 50 miles east of Los Angeles.
Later Friday, Briscoe and the other drivers are to hold a qualifying session to set the starting order for the MAVTV 500. Then it's more practice as the sun begins to set, because Saturday's race is set to start at 5:50 p.m. PDT and finish under the lights.
Ed Carpenter was the second-fastest in the first practice, at 216.971 mph, followed by reigning Izod IndyCar Series champion Dario Franchitti at 216.545 mph and Briscoe teammate Will Power at 216.443 mph.