Goodyear test at Michigan includes possible 2017 changes

NASCAR Sprint Cup Series teams saw their time cut short this past week during a tire test at Michigan International Speedway, but Goodyear officials said the on-track time was sufficient for the tire supplier's needs. Additionally, NASCAR officials were on hand for the May 17 session to examine the impact of recently announced rule changes for 2016 and potential aerodynamic adjustments for the 2017 season. Rain around the 2-mile track delayed the start of the test, and returned later, forcing officials to end the session just after 2 p.m.

"We were able to run through our stuff pretty quickly and got some long runs in," Greg Stucker, Director of Race Tire Sales for Goodyear, said Friday at Charlotte Motor Speedway. "It was a confirmation test; we weren't going through a lot of different combinations or anything. We just confirmed that what we had taken was the right combination. Everyone was very comfortable with it. There was plenty of grip; it was cool, but we knew that going in. No surprises. We were real comfortable with everything." NASCAR.com