Winterbottom held off a hard-charging Van Gisbergen to win the third race of the weekend at Hidden Valley Raceway.
Red Bull continues to perform at a level far beyond any of their adversaries this weekend.
Yvan Muller claims pole position for Race One at Spa.
No one could touch Jamie Whincup in the opening race of the weekend.
Dyson Racing Team Bentley debut race slated for June 20 at Road America
Will be carried out every day, at every event
Aaron Smith wins for the second time in his BTCC career.
eBay Motors went 1-2 in the opening race at Oulton Park.
Ma Qing Hua has shocked the WTCC world and done Citroen proud.
Ulsterman pips Jason Plato for his first pole of the season.
The rest of the PWC field is in Detroit, leaving Touring Cars to their own show
Takes first of two races this weekend
CBS Sports is going to bring all the DTM races in the USA and Canada in full length.
Two people were injured after a freak-accident in Italy earlier today.
Blancpain Endurance Series driver looking forward to 'extremely scary circuit'
Yvan Muller inherits the top spot after the original pole-sitter is penalized for the second time this year.
BMW Motorsport releases a video of a DTM pit stop, using an infrared camera.
Ellen Lohr remained the only woman to have won a DTM race.