I know I'm almost there with this one, but sadly I think i will have to admit defeat on this one, as all of the information I have and know was contained in my original answer.
I know about the pre-Enfield 8000 electric car link, that Diva and Greek connections, and the fact that the REVE helped pave the way for the later Enfield Bikini, but I can't find out anything more on the REVE itself, apart from it being electric, and built on the Isle of Wight, England. Shame!