Here http://teslamotorsclub.com/forum/index.php/topic,90.new.html#new I found out that Tesla has enough power for some serius racing. It needs just another gear with 1,06:1 ratio. In this third gear maxumum engine power of 185kW would be achived at precise maximum speed of 160mph (262 km/h). Of course, at this speed not much driving would be possible, batteries would be drained in mere 17 minutes. This is probably why Tesla choose not to fit that gear. It would add little to general usfulness of the car. But this is certainly enough for a few laps at racing circuit. Roadster would probably need wider front tires that would increase aerodynamic drag and somewhat reduce the top speed but still you would have a serious racer. Mindblowing aceleration and speed.