my 2 cents on the Mini/Clio debate: I had a Mini cooper for 6 months from March to late summer 2002. I loved the cooper in terms of handling, design, looks. I then started to think about a cooper S, and checked out the various conversions available from JC Works, Hartge etc. I can assure you that a cooper running at 200hp would be a fantastic car, with few others to match its handling.
That was until a good friend who races a caterham R300 and drives a modded elise for "normal" use, recommended I took a look at a clio cup. Even though we have other cars, I wanted something fast, fun but with two seats in the back. Having spent some time working out the bhp/ton/handling vs. cost, I cannot think of any other car that comes anywhere near the cup. To make matters even better, I found a local dealer with a demonstrator that I am getting in April (the day it reaches its 3 months). It will have 3k miles on the clock (should be opening up nicely) and I got the VAT off ... After Im done with the modifications I have in mind, Ill have a 200hp+ cup for a price well below a standard Cooper S - No brainer -