So which engine is better of the Audi a6 4F (Avant)? I see in my country that 2.0 FSI is more expensive than the 2.0tdi. And I have seen 2.0TFSI at the same price range. Also there are tons of 2.0 TDI here at the same price. But I am not sure which to go for! I want torque, good MPG, engine that will not need to be fixed all the time etc. Chip-tuning is also available in my case. Which engine is better to chip/remap? here are the choices for my budget. 2.0 FSI 2.0 TFSI 2.4 V6 2.7 TDI 2.0 TDI What would you choose? How much gain of HP and torque would I get from these engines? Thanks guys ! And btw, what is the difference between non facelift and facelift? And what are the "Must" equipment for this car?