It wasn’t a secret that teams would be testing at Sebring over the weekend but news was that the Audi R18 TDI LMP racer would be there. Here’s proof that it was. Our friend and photographer, James Boone was on hand to shoot some great shots of this Stealth like beast. We also see a bit of the Audi Project Rosemeyer in there… The R18 TDI will use the 3.7-liter V6 TDI. Official winter testing will be Feb. 9-10.