I just played around with a Carerra S and widened the air intakes and put some turbo splitteres on it. I also put on the turbo side skirts, it's somthing Porsche would never build, but it was fun anyway.

Front view
http://images.streetfire.net/photos/Porsche-911-Carerra-Turbo_1430004_0.jpg


Front side view
http://images.streetfire.net/photos/Porsche-911-Carerra-Turbo_1430005_0.jpg

It is all about having fun!!!!!!