Marcos Ambrose understands the $US25,000 fine NASCAR levied against him for punching Casey Mears in the face.
Dan Gelston Daytona Beach, Florida: NASCAR Hall of Fame driver Richard Petty is standing by his comments that Danica Patrick can't win a race and says it's unfair he has been labelled a sexist.
Australia's Marcos Ambrose has been involved in an ugly post-race scuffle in Richmond, Virginia.
Australian NASCAR driver Marcos Ambrose has been slapped with a $US25,000 ($A27,000) fine for punching rival Casey Mears in the face during a post-race altercation.
Mark Fogarty Former V8 Supercars champion set to continue in American stock car racing.
Danica Patrick became the first woman to secure pole position at a Sprint Cup race on Sunday when she was fastest in qualifying for the Daytona 500.
NASCAR driver Jason Leffler has died after his vehicle flipped during a dirt car event at Bridgeport Speedway in the US.
Robert Grant Tasmanian Marcos Ambrose says there will be no second chances if he fails to make an impact at the premier NASCAR Championship in the US next year.
Marcos Ambrose has recovered from an early clash to salvage 15th placing and a solid haul of points in the Kroger 250, Race 32 in the NASCAR Nationwide Series.
Marcos Ambrose will become the first Australian to race fulltime in the top flight NASCAR Sprint Cup Series in 2009.
Australia's Marcos Ambrose says he is starting to feel comfortable with his car after qualifying in 29th position for Sunday's NASCAR Sprint Cup Series race.
Australian Marcos Ambrose has claimed his maiden NASCAR win with victory in the Zippo 200 at Watkins Glen International.
Marcos Ambrose has grabbed the highest-ever qualifying position by an Australian in NASCAR Sprint Cup Series racing, claiming seventh spot for his debut.
Robert Grant Australian Marcos Ambrose has elbowed his way through the field to catapult from last to second and score his best ever NASCAR finish.
Mike Harris NASCAR's stars are serious about fighting drug use in the sport - even if it means regular, random testing.
Marcos Ambrose's luckless start to the NASCAR season continued on Sunday when a collision forced him out of the Sam's Town 300 at Las Vegas Motor Speedway.
Australian driver Marcos Ambrose suffered handling problems as he stumbled to 22nd in the second race of the NASCAR season.
Jacques Villeneuve has lured former IndyCar owner Barry Green out of semi-retirement in Australia to make a successful transition from Formula One to NASCAR.
Marcos Ambrose has produced the best finish to a season by a foreigner in a NASCAR series for 33 years.
Sam Hall, David McCowen, Stephen Ottley V8 Supercars boss James Warburton believes the sport will undergo its biggest transformation since 2007 next year with the arrival of a new broadcasting deal and more prime-time exposure.