I just put Sport A2's on my 94 E320, and my mother has them on her Audi A6. I have loved the tire. Very quiet, no vibration, and REALLY good in the rain (which was important, because the E320 ain't so hot in the wet weather).

For their price (which on tire rack is $84) I don't think you can beat them. I'd recommend you go to tirerack.com and read about them, they have all sorts of comparisons and reviews from regular buyers and experts alike.

Jordan