RC, you could probably get nearly a hundred miles for free from your Lotus dealer, with a komotar-style blag about not being able to get a 'feel' for the car just going round the block a couple of times...
You might have some phone calls to fend off after, but you can always say you preferred car X and have decided to buy that instead.
Giving my secrets away lol
I was allowed to take the Trans Am off on my own before I finally decided it was 'for me' (and without any credit check) although I did actually buy on that occasion.