The latest turbodiesel LMP1 racer to carry the R18 e-tron quattro name will race in the six megajoule hybrid sub-class next year rather than the 4MJ division in which it competed in 2015.
Audi has abandoned the flywheel energy storage or mechanical battery system used since the arrival of the first R18 hybrid in 2012 in favour of a lithium-ion battery, the same technology used by 2015 WEC champion Porsche.
The move to 6MJ should put the Audi on a par in terms of the Equivalence of Technology with petrol-powered rivals Porsche and Toyota, who will both race at 8MJ in 2016.
The latest Audi once again pushes the boundaries on aerodynamics, as can be seen from the first photographs of the car.
Audi Sport boss Wolfgang Ullrich said: "With our new Audi R18, we're setting a clear signal: Audi continues to put the pedal to the metal in motorsport, deliberately relying on TDI - the world's most successful automotive efficiency technology - at the Le Mans 24 Hours."
The new car ran for the first time at Paul Ricard with Filipe Albuquerque at the wheel earlier in November, and now we have the first shots of it in action at Sebring Raceway FL.