Okay maybe I should rephase that as one car I have driven which is interesting. My aunt had leased a 1999 Mercedes SL500 convertible. It had a 5.0L 24valve SOHC V8 (3 valves per cylinder). It was a fun, but uncomfortable car. Cornered very good and had plenty of power, just no cushion in the seats nor any leg room. She let me drive it a few times. The only other interesting ones she has is a Nissan Altima 3.5L V6 and a '71 Pinto that my grandfather transformed into a trolley car for parades (it looks nothing like a Pinto it looks very different, if I get the chance over spring break, I'll scan the pictures and post them). It is gutless of course but it is truely unique.

To sum it up in one word I will say:

1999 Mercedes SL500: overpriced
2005 Nissan Altima: acceleration
1971 Ford Pinto (Trolley car): OUGA!!!

It is a neat thing to experience but I would never own one no matter if I became rich. Too uncomfortable for the money and there are more comfortable cars with better acceleration that cost much less.