Audi A6 and A7 to go BiTDI with 313bhp diesel

Audi's A6 and A7 are about to get a little bit fruiter thanks to a new Bi-turbo diesel engine.

The new engine teams a 3.0-litre V6 diesel lump with two whacking great turbos to produce 313bhp and deliver a whole new world of accelerative joy to your morning commute.