KEY POINTS:
The three Audi R10 TDI prototypes entered by Audi Sport at the Le Mans 24 Hours this weekend are racing for the first time with the next generation of biofuel made from biowaste.
The fuel claims to reduce promises CO2 emissions by almost 90 per cent compared to diesel.
Shell V-Power Diesel race fuel produced by Shell has been used since the start.
Shell's fuel is created from natural gas in a process called Gas To Liquids (GTL).
For this appearance of the Audi R10 TDI at Le Mans, a small amount of next-gen biofuel is mixed for the first time with the GTL components.
Biomass To Liquids is extracted from biowaste unfit for use in food.
