Insiders at Audi have stated that the marque may ditch endurance racing and join the ranks of Formula One.
The three-time Le Mans winners were in damage limitation mode at Fuji Speedway.
Challenging conditions in the foothills of Mount Fuji.
Audi once again, claiming a 13th victory, thanks to drivers Tréluyer, Fässler and Lotterer (third success for this trio at Le Mans), part of a 1-2 finish this year.
Porsche lapped quicker than both Audi and Toyota and ended free practice two with the fastest time, setting up what should be a thrilling qualifying session.
After Toyota led most of the session, the opening practice at Spa ended with Audi on top.
At Spa, theater of the next round of the WEC, the Audi trio will have revenge!
The second round of the 2014 World Endurance Championship is scheduled for next weekend at Spa-Francorchamps.
Accidents end the race of both Audi R18 e-tron quattro cars.
In a surprise move, Audi Sport has announced that its Audi R18 e-tron quattro will be fielded by privateer Belgian Audi Club Team WRT.
Nine-time Le Mans winner Tom Kristensen drove the 2014 challenger from Place des Jacobins to the 24 Hours of Le Mans circuit for a fantastic media event.
Le Mans winner Tom Kristensen drives LMP1 sports car.
Trendsetter Audi: four-wheel drive also established in LMP1 sport
Audi, Toyota and Porsche will have two cars each testing.
A handful of prototype and GT cars hit the Florida track to prepare for their respective seasons.