a4 all day. bought my dad a brand new a3 a few months ago, same engine, that s**t is something serious for a v4 2.0T. I believe the a4 also has a 3.2T...if thats legit and you want power, no one does turbo's like audi. I 100% recommend it.
nah the a4s do not come with a 3.2t....its 3.0t anyway and in the a6 an a5...and the T stands for supercharged no turbo for whatever reason i already know before anyone says anything.
you can get the 09 an below with the 3.2 or 3.0 (lower years) and 2010s only in the 2.0t...AFAIK
but my vote goes for the A4...but i would debate it and the benz-c but only if it was the 4matic sport version.