I just stumbled onto this website that lets you rent out a collection of exotic cars, for around the price range of my monthly M3 payment.
Of course I believe you are limited to between 1000 - 4000 miles per year (all cars you drive) "FRACTIONAL OWNERSHIP" its like a timeshare on exotic cars!
For all you rich guys afraid of commitment of an exotic car.. They even detail your daily driver when you take their car!
Check it out!
http://www.xautx.com/club_programs.html