Jaguar XK120, which I had some difficulty driving with the crash box given I had only had my licence for a year.
I have never had anything exotic car-wise personally. A Bertone Alfa GTV 2000 when I was a kid was fun, mostly Mazda MX5s in recent decades and most recently a Toyota 86 and a Subaru BRZ which have been fun. One of my MX5s was the factory supported after market Australian turbo version devised by an ex-racer which was fairly rapid if a little crude waste-gate wise.