don’t mind the ModelName 
As you can see, i selected 202km/h as topspeed, and actually got 293kmh and a weired speedgraph.
http://img849.imageshack.us/img849/6189/mn6z.jpg
http://img819.imageshack.us/img819/5655/dbhu.jpg
Yes, that one is known and still not fixed. Somehow the simulation starts ignoring the redline from 20 seconds onward.