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Updated: 1 hour 24 min ago
Valentino Rossi has described Honda's MotoGP form as "worrying" after Marc Marquez gave the manufacturer its second straight victory at Austin
Haas Formula 1 team principal Gunther Steiner believes Kevin Magnussen's growing confidence in his second season with the team has allowed him to improve his consistency
Chile's hopes of hosting a round of the World Rally Championship took a step forward with a successful candidate event last weekend
Penske's Will Power says he could not believe IndyCar restarted the race at Barber Motorsports Park under the "very dangerous" extreme weather conditions
Ducati rider Jorge Lorenzo says his poor showing in the MotoGP race at Austin made him feel "very sad" and was "difficult to accept"
Reigning NASCAR Cup series champion Martin Truex Jr says he and his Furniture Row Racing team beat themselves at Richmond after pit problems and a failed strategy left him 14th
Lewis Hamilton says 2018 world championship victory would mean more than his previous Formula 1 titles given that Mercedes might currently only be the third-fastest team behind Ferrari and Red Bull
IndyCar's race at Barber has been pushed back until Monday, after running just 22 laps, almost half under yellow flag conditions due to heavy rain and wind.
Marc Marquez says the criticism he received in the wake of the controversial Argentina MotoGP race gave him "special motivation", as he dominated Sunday's race at Austin
The Oscaro eSports team dominated the semi-finals of the inaugural DiRT 4's eSports World Championships, earning three of the six spots in the grand final
Marc Marquez overcame a grid penalty to score his sixth straight MotoGP victory at Austin in typically dominant fashion
Volkswagen has revealed its challenger for a record-breaking run up this year's Pikes Peak International Hillclimb
The WRT Audi squad won the opening round of the 2018 Blancpain GT Series Endurance Cup at Monza
Honda MotoGP rider Dani Pedrosa says he is unsure whether he will be able to complete Austin's race due to the pain he is suffering from his broken wrist
Brendon Hartley's World Endurance Championship experience with Porsche brings a "fresh and unique insight" to the Toro Rosso Formula 1 team, according to technical director James Key
MotoGP points leader Cal Crutchlow says his poor qualifying at Austin's Circuit of the Americas was caused by a "bad tyre"
Reigning MotoGP champion Marc Marquez says the block on Maverick Vinales that cost him pole for the Austin race happened because he was focused on keeping Andrea Iannone ahead
Renault was outsmarted by Formula 1's big teams over the winter and is "disappointed" it has not made a bigger step, says chief technical officer Bob Bell
Scott McLaughlin has taken a healthy lead in the Supercars points thanks to a pair of wins at Phillip Island
Joe Gibbs Racing's Kyle Busch matched Kevin Harvick's streak of three 2018 NASCAR Cup series wins in a row after victory at Richmond