The NASCAR Sprint Cup series heads to Michigan International Speedway on Sunday as the season shifts towards the summer.

FOX's Marghiee Teshineh has "FOX in the Fastlane":

Kurt Busch goes to the two-mile track at Michigan this weekend as the tracks defending champion, but says that's no guarantee of a win:

(Busch) "Last year's win with the new aero package this year doesn't mean much."

But Dale Earnhardt Jr., who came in second last week, and has been close to winning so many times, thinks that his luck could change at Michigan this weekend:

(Earnhardt Jr.) "I'm looking forward to Michigan and obviously that's going to be a different package, but I think we'll run good on that track too."

Earnhardt will have a busy weekend at Michigan, racing in the Cup series race and making his television debut in the broadcast booth as guest driver analyst for the Xfinity Series race.

And Kyle Larson and the No. 42 car got hit with fines and penalties after facing a post-race inspection at Pocono for not properly installing lug nuts. Crew chief Chad Johnston has been fined $20,000, suspended for Sunday's race at Michigan and is on probation until the end of the year.

I'm Marghiee Teshineh, FOX News.

Follow FOX's Marghiee Teshineh on Twitter: @LadyTrackSide