(CONCORD) -- The NASCAR Sprint Cup Series wrapped up a two-day session at Lowes Motor Speedway on Tuesday. Current Series champion and LMS master, Jimmie Johnson said the test was welcomed by everyone. "It's so tough to get on-track time right now especially on tracks that we compete at. You can go to Kentucky, you can go to Nashville and these other tracks, but if you're not on the real track it's really tough to have anything carry over and really help the team," said Johnson.

The test was critical as the Cup Series prepares for the 17 events at 1.5 mile tracks that remain on the 2008 schedule, including the two at LMS later this month. "I think it will help us advance the Car of Tomorrow on these bigger tracks and then also put on a better show here for the 600 and All-Star weekend."

Johnson said there is a critical challenge the Cup Series faced at the big tracks. "To have the right tire to test with has been a very big struggle."

The Cup Series runs at Darlington this weekend followed by the two events at Lowes Motor Speedway to end the month of May.