 If a past champion is not driving for an exempt team (outside the top 35 in owner points), he may be eligible to use a past champions' provisional to enter the race.The provisional guarantees a spot to the most recent champion not exempt, but those who are former champions will be limited to six for the entire 2007 season.Teams not exempt must "race" their way in during qualifying – if 47 cars are attempting to make the race, and no one is using a provisional, then there are 12 cars racing for eight spots, and the eight fastest cars will make the race.