The Supra is a great combination, very quick, great looks (better than a 996/M3/etc IMHO), four seats and awesome reliability.
On the topic of Porsche's, my flatmate's dad has a 2000 996 C4. Purchased from a main dealer, regularly serviced and very well looked after with 30k miles yet he's had no end of problems with it, the most major of which has been failure of the head gasket leaving him with a bill of around £8k, and apparently it's just happened again! It's certainly put me off the idea of Porsche ownership...
I can't think of any other car with the same level of power and reliability as the Supra.
All that said I do quite fancy something that's a little more involving and nippy - in my old CRX VT I used to nail it out of the lights at every opportunity, in the Supra I feel like I've become a bit of a cruising old man! Ultimately I'd love to have a track day car on the side which quite a few people on here to seem to do...