I drove a 150 BHP Caterham on a track day on Circuit Mon a few weeks ago, it was fantastic, I have never cornered so fast in my life before. I enjoyed the exhaust and tyre squeal, both were loud!
BUT, I would only drive one on the road on sunny days for fun, that is if I could afford to run it just as a fun car, they are not good for an everyday car, no luggage, very cramped but height is not a problem, I am 6ft. It would be very boring on a motorway keeping to 70mph.
Keep it on a track.