I bought a 2005 preface Rs 225 mk2 couple of weeks ago , and i need some suggestion what to do with the car. It is pretty much standard beside a chip tuning and a home made endpipe/muffler. have 18" wheels on it. I want to use in on the road and Tracks/Nurburgring. So what do you suggest i have to upgrade? What must i upgrade and whats smart to upgrade.-) I am from Norway so bare with my English;-)