Yeah, now me has also read the two Swedish tests (AMS & TV) and they do indeed make very entertaining and flattering reading - on top of the full Autocar solo road test - for a soon to become RS4 man. It is worth nothing that the Swedish press RS4 car had the heavier S4-like Recaros and the quoted 1870kg weight includes driver and some stuff.
The acceleration performance is delightfully better than than I had expected from power-to-weight especially as the engine does not quite live up to the quoted numbers - TV reckons 403PS from engine and AMS 349PS at wheels from the same test car with only 1000+km mileage as discussed earlier.
But: fact remains that the RS4 is pretty heavy and more diet would be in order...