Let’s get ready for a funky ride with the 2011 Audi R18. The Audi itself has expanded, and restructured their model to be one of the state of the art prototype for the year of 2011. It will be using a 3.7L V6 turbo diesel engine because from the point of view of the head of engine development of Audi – “Turbo diesel is said to be the most efficient technology”