Provisionals, more testing, and making the race on speed — NASCAR looked to its past in making a host of rules changes for the 2013 season that the sanctioning body hopes will put more of an emphasis on who has the fastest race cars.
Read MoreNASCAR Sprint Cup Series News
NASCAR Sprint Cup Series news and photos from the stock car racing series. This is archive coverage of the NASCAR division once sponsored by Sprint, an American cellular company. View the NASCAR Sprint Cup Series news archives here.