Aussie Power seeks IndyCar repeat

IndyCar driver Will Power

12:15 PM   Will Power's IndyCar title defence starts at this weekend's St Petersburg Grand Prix with the Australian admitting his breakthrough after years of near misses has made him hungry for more success.

Fernando Alonso attacks McLaren over 160 kp/h crash

Combative:  Fernando Alonso of Spain has disputed McLaren's finding.

Daniel Johnson 10:42 AM   Fernando Alonso had barely passed the medical exams which allow his return to Formula One before he was hurling grenades towards his McLaren team with an explosive testimony of the accident which threatened his career.

Bottas gets all-clear for Malaysian F1

Valtteri Bottas of Williams drives ahead of Daniel Ricciardo of Red Bull Racing during practice ahead of the Brazilian Grand Prix in Sao Paulo on Friday.

10:07 PM   Williams Formula One driver Valtteri Bottas has been passed fit to drive in this weekend's Malaysian Grand Prix after undergoing medical checks by the world governing body FIA.

Calmer Power primed for IndyCar defence

Will Power has a strong record at the St Petersburg street circuit.

9:21 PM   Every year Will Power spends in the United States racing the IndyCar series the American twang in his Australian accent strengthens.

Red Bull and Renault play blame game

'We've got an engine which is quite a long way behind.'

Relations between Formula One team Red Bull and engine supplier Renault have taken a turn for the worse ahead of the Malaysian Grand Prix.

Race-winning engine unlikely for Ricciardo

Formula One driver Daniel Ricciardo.

Renault's Formula One boss says Daniel Ricciardo isn't likely to get a race-winning engine this season.

Alonso set to race in Malaysia: McLaren

Fernando Alonso.

Two-time Formula One world champion Fernando Alonso is set to return to the track for the second Grand Prix of the season in Malaysia, his McLaren-Honda team has confirmed.

Ambrose goes bush to consider V8 future

Marcos Ambrose  is spending time on his own in a remote area of Central Australia to "clear his head".

Mark Fogarty   Frustrated former V8 Supercars champion Marcos Ambrose has fled to the outback to consider his future after aborting his comeback.

German GP dropped from 2015 F1 calendar

Lewis Hamilton

Alan Baldwin   Germany will have no Formula One grand prix this year for the first time since 1960 after the sport's governing body issued a revised calendar on Friday without the July 19 round.

German GP unlikely due to cost

Germany appears to be without a Formula One race for the first time in 55 years as neither of the country's two circuits has been able to get series promoter Bernie Ecclestone to reduce his fee.

Will Marcos Ambrose be back in V8 Supercars?

ADELAIDE, AUSTRALIA - MARCH 01: Marcos Ambrose drives the #17 DJR Team Penske Ford during race three for the V8 Supercars Clipsal 500 at Adelaide Street Circuit on March 1, 2015 in Adelaide, Australia.  (Photo by Robert Cianflone/Getty Images)

Stephen Ottley   The former champ stunned the sport and questions remain over his future behind the wheel.

Red Bull complaints leave a sour taste

Daniel Ricciardo of Australia finished sixth in his home grand prix.

Oliver Brown   It is one of the mysteries of our time that a sickly-sweet energy drink, with enough caffeine to keep the average mammal awake for a week, should morph into a cultural phenomenon worth more than $5 billion. But in the sporting sphere at least, Red Bull have reached a moment of reckoning.

Hockenheim 'gives up hope' for German GP

Germany faces being without a Formula One grand prix for the first time since 1960.

A 2015 German Formula One grand prix has become even more unlikely after Hockenheimring boss Georg Sailer was quoted as saying he has given up all hope.

Aussie Will Power fastest at IndyCar test

Power closed in on the Barber Motorsports Park lap record with a mark of one minute 7.3118 seconds on Tuesday.

Will Power's IndyCar title defence has started in the best possible fashion, the Australian fastest overall at a two-day pre-season test.

McLaren's Alonso set for simulator

Fernando Alonso.

McLaren driver Fernando Alonso will drive a simulator this week in his bid to return to racing.

Hamilton hits back as F1 storm builds

"There has never been a driver that has won the championship that hasn't had a great car that year, as far as I'm aware": Lewis Hamilton.

Daniel Johnson   Lewis Hamilton has poured scorn on suggestions by Bernie Ecclestone, the chief executive of Formula One, and others that an urgent rewrite of the rules is needed to stop him and -Mercedes dominating the sport, claiming that he would beat any driver in the same car.

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Ambrose asks for V8 break

Marcos Ambrose.

Two-time V8 Supercars champion Marcos Ambrose has surprisingly asked for a break from driving as he reassesses his much hyped comeback.

Rain cuts short Miller's final MotoGP test

Jack Miller and Cal Crutchlow

Torrential rain has denied young Australian Jack Miller a final day of testing on his new bike, less than a fortnight out from his MotoGP debut.

Powertrain progression key to competitive F1

British driver Lewis Hamilton (right) celebrates with teammate German driver Nico Rosberg (left) and Thomas Weber (centre) of Mercedes.

Mark Fogarty   Formula One is perhaps the ultimate meritocracy in sport. If a team puts in the biggest effort and the most money, it achieves sustained success.

Mercedes F1 boss Toto Wolff tells moaners to go to the Wailing Wall

Winners are grinners: Mercedes GP boss Toto Wolff.

Daniel Johnson   The chequered flag had barely fallen in yesterday's (Sunday's) Australian Grand Prix before Mercedes were involved in a bitter row with their rivals who were demanding an urgent shake-up of the rules to prevent a two-horse race this Formula One season.