Stay up to date with the latest news from Autosport.
Updated: 42 min 52 sec ago
Reigning IndyCar champion Josef Newgarden defeated Penske team-mate Will Power for pole position in Sunday's Barber race, as championship leader Alexander Rossi could only take eighth
Marc Marquez provisionally continued his unbroken run of MotoGP pole positions at the Circuit of the Americas, but is under investigation for baulking closest rival Maverick Vinales
Honda rider Marc Marquez dominated the rain-disrupted third MotoGP free practice session at the Circuit of the Americas in Austin
NASCAR Cup series points leader Kyle Busch says that Stewart-Haas Racing's Kevin Harvick is still "a little bit better" than he is in the 2018 season
Autosport takes a closer look at 10 Formula 1 cars that never competed in a race in our latest video animation
Carlos Sainz Jr says his deficit to Nico Hulkenberg is partly because he is still learning his Renault Formula 1 team-mate's "little tricks"
Ford bringing the Mustang to Supercars makes a Holden Camaro entry a "no-brainer", according to a key player in Ford's new programme
Red Bull's Chinese Grand Prix victory owed much to clever strategy and brilliant racecraft from Daniel Ricciardo, but development of its RB14 2018 Formula 1 car also helped
MotoGP stewards are to impose harsher penalties for dangerous riding from now on, following the incident-strewn Argentiian Grand Prix
Formula 1 should not be "dumbed down" by following IndyCar's path of spec cars, says Haas team principal Gunther Steiner
Valentino Rossi has branded the situation at Austin a "disaster" as MotoGP riders slammed the increasingly bumpy and dirty track surface following Friday practice
Honda MotoGP rider Dani Pedrosa says scoring points in this weekend's Austin race in order would make the pain he is suffering from his broken wrist worthwhile
Penske controlled practice for IndyCar's first road course race of the season at Barber Motorsports Park, with Josef Newgarden fastest of all in a chaotic day of running
Suzuki's Andrea Iannone set a shock fastest time in second free practice for MotoGP's Grand Prix of the Americas at Austin on Friday afternoon
Reigning MotoGP champion Marc Marquez set the pace in first practice at Austin, beating nearest challenger Valentino Rossi by four tenths of a second
Felipe Massa believes his former team Williams is paying the price for putting money first in some of its decisions for the 2018 Formula 1 season
Kevin Magnussen is the highest-rated driver among Autosport readers from the first three Formula 1 races of 2018, with Max Verstappen the lowest
The Venturi Formula E team has made ex-MotoGP rider Max Biaggi a brand ambassador
Jorge Lorenzo believes the blame for aggressive riding in MotoGP lies with series officials rather than riders, as the current sanctions are not a sufficient deterrent
Jaguar driver Mitch Evans reckons the Gen2 car Formula E will introduce for its fifth season in 2018/19 is "somewhere between a prototype and single-seater"