What type/make/models of car sell the quickest

[MrModo]

Hi

Sorry if this has already been raised

Strictly speaking, I know this is more about selling, but I do spend time browsing the classified looking for that car which jumps out, not particular model or style, but something which looks different or seems a particular deal.

I see some cars which I think should be selling immediately, but they seem to hang around.

I was just wondering if there were any stat's or opinions on what car seems to sell the quickest.