Hello Audi-community, after a few years of rest, I would like to say a few words in this section. I play with the thought of leaving my 545i (finally). As successor, next to a 550i, a 640d, there is an A7 with 3.0 BiTDI to choose from. Why an Audi in the series? Because the Fzg. most appeals to me from the design. 🙂 Furthermore, he has four doors, which makes it extremely easier to place smaller people in the rear seat. In addition, many 550i have a Macke, which with defective Injectors are connected. I haven’t been able to read negatives of the 3.0 BiTDI yet. But now to the actual. Would you exchange an 8 cylinder for a 6 cylinder? Is the 3.0 BiTDI really as strong as shown in the test videos? Or would such an exchange be a mistake from the performance as well as from the quietness of the run? The suit of the TDI is quite neat, only what happens beyond the 200 km/h? You can get used to the “sound system”, although an S7 “realist” ischer” sounds like V8. But that only on the edge – I could arrange with it. 🙂 We leave the maintenance aside except for the consumption. The 3.0 BiTDI ranks in insurance and tax at the moment cheaper than mine. It depends on the engine alone. Is there experience about the longevity? I have read in another topic that some with the converter automatics have problems and the engine can therefore not fully develop its performance at all times. What would you like to do? I guess?