I'm not sure I've ever seen one to be honest..... black vipers i guess would be the obvious choice there.
Here are some convertible viper threads to have a browse through....
http://www.mini2.com/forum/mini-conv...rs-strips.html http://www.mini2.com/forum/mini-conv...nvertible.html http://www.mini2.com/forum/mini-conv...r-stripes.html
and a general pics thread to search through
http://www.mini2.com/forum/mini-conv...pics-here.html