Ah, I Googled "limited run super cars" and funnily enough the BMW 8 Serried didn't come up on page 1, or page 23,0000, just bunch of crappy Ferrari's and Lambo's and other average cars.
Then I went down a rabbit hole and found this interesting link for tragic car nerd anoraks like myself...
Kiss good buy to an hour on a Tuesday afternoon.
http://en.wikipedia.org/wiki/List_of_automotive_superlatives