Quote Originally Posted by Marv View Post
...well the petrol engines are, the diesel ones are definitely not top of the class. BMW and now Jaguar (with their new twin sequential turbo v6 configuration) are the best IMHO. Audi need to up their game here.
Yes it's a bit of a mystery why Audi haven't got their own twin turbo diesel to compete with the BMW and now Jaguar performance diesels. I remember hearing about the likelihood that Audi were working on their own hi-performance diesel that would from an equivalent to their S and RS petrol model, but since that time the whole thing seemed to fizzle out or either it was at best a rumor that started on the Internet.

Though they do have two of the best diesels in the 4.2TDi and the V12TDi (D beast).