Good idea. Old Jags are about as much my specialist subject as bikes are yours.
Doki also wrote:
Cool - I didn't give the older BMWs a look-in really, but E30 M3s, E28 M5s, and even the older stuff - certainly 635CSIs (and the M6, which I think is something like an M635CSi) would be cool. As would a Lotus Carlton. And, well, "good idea" to all of that list really.
Yup - that'd be one of the main downfalls of something like this. Obviously supply would be another - if one was to run something like this, they'd just have to accept that replacing some stuff isn't all that easy - if someone got hold of a mint Lotus Carlton and it got written off, they might have to do without a Lotus Carlton on the fleet for a while. Same goes for anything rare in decent nick. You'd just have to hope that they'd be enough variety of stuff that you'd have something that appeals. And that the insurance company agreed with you on what stuff was worth.
And obviously lack of mechanical sympathy (hire care mentality) would be a potential problem. As would actually finding the people to hire to. I don't believe that there isn't a market for something like this though - it'd be a lot less simple to run than a regular hire company hiring out run of the mill modern stuff that's bought new at huge discount and sold on before its first service. One big thing, IMHO, would be getting cars in decent enough condition. I'd probably pay similar amounts, if not slightly more, to take out an absolutely time-warp condition Mk2 Golf GTI compare to a late shape mid-spec Mondeo. Call me weird. But it's finding the cars that good. Anyone can buy a slightly ropey version of most cars for not a lot, use it for a week and chuck it on ebay.