Oh I was wrong ,about a Ruf porsche turbo price R&D price feb 02 $216000.Ruf Gt porsche 12-00$135,000.And their test shalom times compared to the Stock Crossfires'69.6mph was turbo's 65.7mph and the RufGT (na)....911 2003 time 65.5mph boxster 03s time 68.6.

So it looks like this best handeling Porsche is the Boxster for the price comparison .$43k+ vs 45k SRTs.
Of course the new Boxster cpe will be closer in price.next year.