The first organizational test of the season came to a conclusion on Thursday at Las Vegas Motor Speedway and Kyle Larson was the fastest with a lap of 191.259 mph.
Larson, who also topped yesterday's p.m. session, posted the fastest lap of the test this afternoon in the new Chevrolet Camaro ZL1.
"I feel good about it, and it's been good to get back in a stock car after a couple months," Larson said. "It felt like we had good speed, especially on that last long run we made. I feel like it was a good test, and it's nice to know we still have a lot of speed in our cars with all the changes to the new Camaro."