For less than the price of a Shelby you can build a Corvette powered Boxster or 964-996 and solve all of your problems. indecisionThere are companies doing this in the US. Still have a Porsche but with that big V8 sound and more hp/ torque.. Just something to think about.   https://www.youtube.com/watch?v=i3GXpKRTCIw

The weight is the same. Want a under 600hp Boxster S?  no problem. and everything works and drives right.  https://www.youtube.com/watch?v=P67OSN2DqAE