Side-by-side racing and the nation's booming love of pickups fueled the World Truck Series the past two decades. But the economy is forcing changes, and Pete Pistone wonders what's in store for the popular series.

CBSSports.com auto racing correspondent Pete Pistone answers questions and comments from users.

CBSSports.com auto racing correspondent Pete Pistone answers questions and comments from users.

Rahal Letterman Racing needs a primary sponsor to compete in the 2009 IndyCar Series.

Rahal Letterman Racing needs a primary sponsor to compete in the 2009 IndyCar Series.

Ray Evernham, who won fame as a championship crew chief with Jeff Gordon, is ready to take on some new challenges.

Ray Evernham, who won fame as a championship crew chief with Jeff Gordon, is ready to take on some new challenges.

Leaving Joe Gibbs Racing is Tony Stewart, with 33 victories and two Sprint Cup championships. Coming on board is -- an 18-year-old? Pete Pistone says the team isn't concerned because the teenager is phenom Joey Logano, and he'll have quite a mentor in veteran crew chief Greg Zippadelli.

Leaving Joe Gibbs Racing is Tony Stewart, with 33 victories and two Sprint Cup championships. Coming on board is -- an 18-year-old? Pete Pistone says the team isn't concerned because the teenager is phenom Joey Logano, and he'll have quite a mentor in veteran crew chief Greg Zippadelli.

A.J. Allmendinger will drive the No. 44 Dodge for Richard Petty Motorsports in the season-opening Budweiser Shootout and at least the first eight NASCAR Sprint Cup races this season.

A.J. Allmendinger will drive the No. 44 Dodge for Richard Petty Motorsports in the season-opening Budweiser Shootout and at least the first eight NASCAR Sprint Cup races this season.

Investigators on Wednesday blamed NASCAR for a 'tragic, unnecessary' plane crash in 2007, saying the racing organization let one of its aircraft take off without checking an electrical problem reported the day before.

Investigators on Wednesday blamed NASCAR for a 'tragic, unnecessary' plane crash in 2007, saying the racing organization let one of its aircraft take off without checking an electrical problem reported the day before.

The Dutch bank ING is slashing millions of dollars from its Formula One program this season as part of a massive cost-cutting effort triggered by the global financial crisis.