It's rather interesting indeed, it is a carbon copy of my car. Side stripe, gas flap hood, similar condition, MT... Really, if the 2 were beside each other most would not be able to tell them apart. Aside from 2639 having a weird vinyl passenger seat... the 2 are identical.
http://cgi.ebay.com/ebaymotors/DeLor...item51a23461c8
likely they were sitting beside eachother at some point.