Audi won’t reveal R15 until Sebring

Audi say they will not unveil their all-new turbodiesel R15 LMP1 car until it makes its competitive debut at the Sebring 12 Hours in March.

No photographs or specifications have been released, and there are no plans to do so until March.

"The car ran as planned before Christmas," an Audi spokeswoman told this week's Autosport magazine.

"It was just a rollout and everything went to plan.

"There will be more tests this month, but the plan is to keep the car a secret until Sebring. There will be no official photographs until the week of the race."