Stats:

Racer Magazine website has a chart and story of stats concerning interesting tendencies about the five major auto racing series in the United States. They analyzed NASCAR Winston Cup, Busch Grand National and Craftsman Truck Series, along with the Indy Racing League and Championship Auto Racing Teams (CART). Calculated were cautions, teams finsihing the race, leaders per race, etc. Check it out at: 1999 Stats Show Series Differences