And what do you think is wrong with the 2.0 TDI Audi engine?
The 2.0 is 140 BHP with a 9.6 0-60 and 236 Torque
You've answered your own question there. Throw in the noisy clattery engine and shakey vibrations permeating into the cabin to those figures and thats exactly whats wrong with it. All you need then is a healthy coathing of diesel-buyer purchase jusitification (It makes no noise! Its silent! There are no vibrations! It has loads of torque!) and you've summed up everything I dislike about that engine.
Paying a load of money for a premium car and then buying the eco engine is like buying a really nice, expensive suit and wearing a pair of trainers and old vest with it.
The A3 comes with a range of rather nice petrol engines - the 2.0TFSI is particularly good. And they dont shake your fillings out or remind you of a Vectra taxi at the traffic lights, either.