SLK R171 BJ 2004

Hello together, drive an Audi A4 1.8T at the moment and think about buying a SLK. An acquaintance offered me his also by chance at the WE. It is a R171 BJ 2004 and has just run 25,000 km. However, has a small bump on the hood and the aluminium rims sniffed a little bit. Since I don’t know myself so well with the SLK I would have liked to have a few opinions. Isn’t the R171 only come out in 2004? So because of childhood diseases? Is there something out of what f you should pay special attention? Unfortunately I can’t say anything about the equipment yet. Wanted to see the car the days. What would see as a good price? I would be happy about answers. Greeting, Kevin