I was waiting for the Nissan Roadster, but I got too impatient one day, did some more research on my other car of choice (Z4), stopped by the dealer on Saturday, and now I have the Z4...which I LOVE. www.permaplate.com
It's supposed to be like rustproofing, makes your car look freshly waxed, even when you don't wax it, protects the interior, etc. The biggest selling point was that it was low maintenance, and one would never have to wax...
However, after searching the web, it looks like people are advising against getting it, since to maintain the warranty of the protection, you have to polish it with their approved materials and kit,a nd definitely not worth the money.
So I guess, I won't be getting it.