Australia's season-ending round of the world rally championship later this week will also close two eras in motor sport's most diverse series.

The German whose driving has become a byword for precision and reliability will never have a better chance than in Sao Paulo. The only problem is the forecast.

German driver Nico Rosberg will claim his first Formula One world championship this weekend if he wins his third consecutive Brazilian Grand Prix.

Daniel Ricciardo has spent the past week training and surfing in California as he contemplates turning around a less than stellar record at the Brazilian Grand Prix.

 When it finally happened, the long-awaited racing altercation between Supercars title rival teammates Shane van Gisbergen and Jamie Whincup didn't ignite a war of words.

As Supercars blunders go, crashing into your teammate is a doozy.

Pukekohe

Shane van Gisbergen's 148-point Supercars lead remains intact with just four races remaining in the season after he squared up with Jamie Whincup at Pukekohe Park.

The new Dual cab SuperUte series that will replace the existing V8 Utes category from July next year is to  be open to all manufacturers with turbocharged diesel engines. 

While Shane van Gisbergen is unfazed by the prospect of a Supercars title shootout with six-time champion Jamie Whincup, he is downright dismissive of a suggestion that disgruntled rivals are out to get him.

V8 supersquad Triple Eight Holden is losing two key personnel as it bids for a historic cleansweep of the Supercars championship.

Daniel Ricciardo's third place in the Formula One world championship was finally secured at the Mexico Grand Prix and his boss says he thoroughly deserves it.

Ferrari's Sebastian Vettel has escaped sanction after apologising to Formula One race director Charlie Whiting and the sport's governing body for Sunday's expletive-laden Mexican Grand Prix rant.

Sebastian Vettel's expletive-laden radio rants betray his frustration at Ferrari's fading form, according to his former Red Bull teammate Daniel Ricciardo.

All the action you might have missed overnight.

Lewis Hamilton won the Mexican Formula One Grand Prix on Sunday to cut Mercedes teammate Nico Rosberg's lead to 19 points and prevent the German taking his first title with two races to spare.

Daniel Ricciardo will start from fourth on the grid at the Mexican Grand Prix.

Former Supercars champion and triple Bathurst 1000 winner Garth Tander may be the main casualty of driver changes for next year as he vies for one of the few remaining places.

Australian motorcycling great Wayne Gardner has returned to Sydney after spending 12 days behind bars in Japan over a road rage incident.