I know the people here are very knowledgable about the game, but alot of you dont know abot real cars.
The Audi TT (CURRENTLY) has 2 engine options. They are both 1.8 Turbo 4 Cyl's but one has 180hp and the other has 225hp. Both engines are offered in either the coupe or roadster. The 180hp TT is only Front-Wheel Drive in Coupe or Roadster. The 225hp comes with Quattro AWD in Coupe or Roadster. So if you see an Audi TT in real life here is what to look for: The 180hp FWD TT has a single exhaust pipe. The 225hp AWD TT has dual exhaust pipes and a badge on the back left that says "quattro"
The Audi S4 has a 2.7 V6 Twin Turbo 250hp, I believe it is only around 6-7psi. They all have Quattro AWD and all are 4 doors
The price of the 180hp TT Coupe is $50,400
The price of the 225hp Quattro TT Coupe is $54,900
The 180hp TT Roadster is $50,500
The 225hp Quattro TT Roadster is $59,000
The S4 is $57,000
(All prices are in Canadian dollars)----$100CDN=$61USD