This weekend is all about road racing for NASCAR. The Sprint Cup Series and the Nationwide Series are both at road courses. And if you want to learn more about road racing, Sunday's local Road Racing 101 presentation at the Saratoga Automobile Museum is for you.

Sonoma Raceway in California is a 1.99 mile road course with 10 turns that hosts the Toyota/Save Mart 350 Sprint Cup Series race on Sunday. Marcos Ambrose is the track record holder but defending race winner Clint Bowyer was fastest in the final practice session on Friday.

A number of road racing specialists like Ron Fellows, Boris Said and Jacques Villeneuve will be invading to run Sunday's race with the Cup regulars. Plus several drivers will be making their first ever NASCAR Sprint Cup Series start at Sonoma including Victor Gonzalez Jr., Paulie Harraka, Alex Kennedy and Justin Marks.

The NASCAR Nationwide Series is in action halfway across the county at Road America in Wisconsin today. A.J. Allmendinger is on the pole with points leader Regan Smith who has no experience on the road course starting 16th. Brian Vickers starts 9th and then will pull double road course duty as he plans to head to Sonoma for the Cup race making a rather unique Wisconsin to California double header.

Sunday's seminar at the Saratoga Automobile Museum in the Saratoga State Park is presented by Greg Rickes, the longtime announcer from the Lime Rock Park road course in Connecticut. The program will help newcomers to the sport understand the various classes, formulas and sanctioning bodies that make up the road racing world. Rickes will also explore the latest from the sports car world and field questions from his insider’s perspective.