Great weather greeted a quartet of NASCAR Sprint Cup Series drivers and their crews on the first day of a Goodyear tire test session at Las Vegas Motor Speedway on Tuesday.

Sprint Cup Series drivers Kurt Busch, Jimmie Johnson, Brad Keselowski and Matt Kenseth spent the better part of a cool, crisp and sunny day testing tires at the 1.5-mile superspeedway, and their crew chiefs were pleased by Day 1 progress.

"It's going well, I think, and the drivers seem happy with the amount of grip we've gotten," said Chad Knaus, crew chief of Johnson's No. 48 Chevrolet. "The weather was perfect if you're trying to generate speed, and the speeds are high. We'll have to see how that correlates when it comes time to race and you've got 43 cars out there - it'll obviously be a little bit slower - but everything seems to be fine."

Keselowski made the final laps of the day as the sun set in his No. 2 Ford Fusion that was sporting the new body style that was released on Monday.

"I think we got a lot of things accomplished," said Keselowski's crew chief Paul Wolfe. "Obviously, there's two agendas here - one is for Goodyear and getting through their runs and the teams trying to get some information on different changes and things we're looking at with the new rules package. We got some good runs in for Goodyear, and we got some good data for ourselves as well."

The two-day tire test continues at LVMS on Wednesday. The teams will have a full day of open testing on Thursday, March 3, to kick off LVMS' 2016 NASCAR Weekend.

The big racing weekend continues on Friday, March 4, with Stratosphere Pole Day, the Boyd Gaming 300 Xfinity Series race on Saturday, March 5, and the Kobalt 400 on Sunday, March 6.