Britain's Lewis Hamilton has won the US Grand Prix in Austin, Texas, but it was a disaster for Australia's Daniel Ricciardo, who was forced out of the race early after an engine failure.

Three weeks after snapping his right leg in a training accident, one week after he was in too much pain to even throw his leg over a motorcycle, and one day after he'd qualified a career-best fifth on the grid, Jack Miller surged to the lead at the first corner of Sunday's Australian Grand Prix

Ford's Scott McLaughlin pulls off a remarkable Supercars comeback win on the streets of Surfers Paradise, as the race for this year's championship title continues to tighten.

Marc Marquez moved to within touching distance of a fourth MotoGP world title with victory in the Australian Grand Prix at the Phillip Island circuit on Sunday.

A podium finish is within Australian MotoGP ace Jack Miller's grasp after he surged to fifth spot on the starting grid for Sunday's race.

​Australian Daniel Ricciardo could be the hottest property on the Formula One driver market next year and talk of a move to Mercedes for 2019 is gaining traction.

Lewis Hamilton has smashed the track record to claim pole position for the US Grand Prix, a race in which the Mercedes driver could clinch a fourth Formula One world championship.

He's playing it cool but Ford star Chaz Mostert is quickly closing in on his Supercars championship rivals as the season nears its end.

Statistically, Marc Marquez can't win the MotoGP world championship this weekend, but psychologically, the Australian Grand Prix always shaped as a decisive moment in his late-season tussle for the title with Ducati's Andrea Dovizioso.

How good is Jack Miller really? Is he just another Aussie racing hopeful scratching around in the middle of the MotoGP pack for a few years before fading into obscurity?

Daniel Ricciardo has said he is unconcerned by talk that his Formula One team Red Bull will offer preferential treatment to his new teammate.

It won't secure this year's Supercars championship but Holden star Jamie Whincup says forecast wet weather could end a title dream for him or his rivals on Saturday on the Gold Coast.

Top local hope Jack Miller has made a stunning return to the track, posting a pair of top-10 times in Friday's open practice sessions for the Australian MotoGP.

Brendon Hartley will become New Zealand's first Formula One driver in 33 years at next week's US Grand Prix after being called up by Toro Rosso.

Cameron Hill's hopes of claiming the Toyota 86 Series title have been dashed.

Standing on the Suzuka podium after his fourth victory in five races, one which all but guarantees him his fourth world title, Lewis Hamilton looked at the sea of faces below him and picked one out.

Underdog local team defeats international stars to take a famous victory at Mount Panarama.

• IN DEPTH

It is interesting listening to the man who became Formula One's youngest team principal back in 2004 putting the case for a more egalitarian sport.

After producing the "Lap of the Gods", Ford's record-breaking Scott McLaughlin was reduced to mere mortal status at Sunday's Bathurst 1000.