Audi S4 info for newbie please
 

Hey. I'm completely new to Audi's but want one bad. Been searching dealerships etc and have decided I love the S4 Quattro looks and the big V8 power.

I assume these have things to look out for?

Also, found one and seller claims its a Lamborghini Edition with Recaro seats, sports package and its rare. I seriously haven't a clue.

Any info, tips to help me from making a poor buy?

Appreciated.:)