You could easily push 507hp out of that engine. They do it with the M5. That is NA horsepower too, providing everything starting at idle. Also, the weight savings in that car must be crazy. The price would be $304,425, not including shipping costs, DOT legalization process, and more. I think it would be a fun car, but like you guys are saying, it's not worth it money wise, unless you are in it for the rarity and exclusiveness.