I bought this with some urethane high build primer when I was doing body work on my Rx7. The single stage paint I used was pretty durable and I got sick of looking at the car in my garage so I didn't use any of this.

It's all still sealed from the factory.

http://www.eurocoate.com/e_clears.html
^That's the company that makes it. The primer I bought from them was excellent, very easy to spray (and I'm a beginner), and very durable. I bought this after the company came recommended by some other garage painters on another forum.

1 Gallon Clear Coat
1 Quart Fast Activator

$60 obo