VAG Group have been developing a Twin Turbo 2.0 CR TDI engine to compete with BMW, Mercedes, Alfa Romeo, PSA Group with their Twin turbo set-ups. I have been waiting for this engine to appear for along time as it might just make me buy new. Rumours were that the Twin turbo VAG unit will produce 204 PS but it could be a little higher but I doubt much more over this.
The current TDI 170 lump is being fazed out form it's standard form to a Common rail form which is already present in a few VAG models, including the new Front wheel drive only Audi TT TDI. The TDI 140 will become Common rail too.
I think the brand new 1.6 TDI Common rail engines are already available in some models on the continent and will produce 100 and 130 ps.
The Special Audi A3 Quattro Sport - from reports uses the Common rail TDI 170 engine with a bigger turbo to produce it's 221 BHP.