The Dynamic exhaust mode is unbelievable, and has to be heard to understand how great it is. I initially wanted an S7, mainly for the performance, but also the v8 sound. However, I couldn't get one for the spec, age and mileage that I could afford. Then saw a video on youtube of a bitdi and I was sold! After all, the bitdi is nearly as quick to 60 (5.2 vs 4.6), has far better economy, and with the active exhaust, sounds just as nice too.
And, as it's an actual exhaust resonator, it's not as fake as other systems that pipe sound through the speakers or use the windscreen to make a noise.
Oh, and another thing, on post facelift A7s S-Line spec, you get among other great toys, the matrix LED headlights, which I wanted. However as the S7 doesn't get the S-line spec, so S7s with matrix are rare as it required the original purchaser to have ticked the box....
