Kurt Busch chases NASCAR playoffs with future uncertain

FILE - Drivers race through a turn in the Bucyrus 200 Nascar Nationwide series race at Road America in Elkhart Lake, Wi., in this Saturday, June, 19, 2010, file photo. Road America owns a reputation as one of the nation’s foremost road courses, but it hasn’t hosted a NASCAR Cup Series event since the 1950s. (AP Photo/Jeffrey Phelps, File)

FILE - Fans watch the Bucyrus 200 NASCAR Nationwide series race at Road America in Elkhart Lake, Wi., in this Saturday, June, 19, 2010, file photo. For all its history, Road America only hosted NASCAR’s premier series once before, when Tim Flock won a rainy Grand National event back in 1956. That changes Sunday on the Fourth of July -- a coup for a facility that bills itself as “America’s national park for speed” but until this year couldn’t land a Cup date. (AP Photo/Jeffrey Phelps, File)