The time has come that i have decided i want a stupid second car

i have looked at a few and so decided on a few basics i want a two seater, softtop would be desirable but it must be fun, also slightly impractical so i don't use it everyday.

So far

BMW Z3 to soft and don't like it for some reason
AUDI TT don't know why not too sure if i like it
Rover MGF Yuck way to fat me no like
Lotus elise very nice but the one i drove was a bit rattly and the gearshift was terrible
Caterham 7 Roadsport Very nice but a wee bit pricey but almost zero depreciation
toyota MR2 No test drive yet but seems like a nice car
Mazda MX5 took a test drive with lowered suspension and it was terrible
Honda NSX sat in hugos and drooled a great deal but also a bit on the pricey side
Porcshe Boxster Had a look but no test drive not too sure if this is what i want maybe a bit too practical and useable but the dash looks perfect for an empeg.

So any other ideas out there as to something with four wheels and great fun at a max of about 15000 pounds Also i don't think i want a FWD car

Does not need to be totally road orientated as also considering a thundering huge offroader