The original Driver was brilliant: it brought movies like Bullitt to your computer or PSX, so you could be a Steve McQueen doing handbrake turns in '70s American muscle cars. Its only (major) glitch was the poor performance on the original Playstation. Far too many times the ruddy thing crashed, because it couldn't cope with more than three active police cars. The traffic consisted of only two types of car per city (Miami, Sisco, LA, NY), so the PC players had a big advantage here. (I'm actually considering grabbing a PC copy out of the bargain bin.) Driver's sequel (called Driver 2 - how original is that?) was also released on PSX. Sadly, the original game showed that the Playstation had reached its limits, but that didn't stop the developers to go over them. Driver 2's main feature is Detective Tanner's ability to get out of his car. The only times you will ever use this option, is when you change cars or open a garage door, which makes this option quite pointless, especially because Tanner is all but able to do a decent job at walking. Firing guns? No way, Jose.
The storyline takes Tanner to (again) four cities: along with Chicago and Las Vegas, it also features Havana and Rio de Janeiro - Havana boosting most of the fun, since you can do your Handbrake 90's with old Volkswagen vans and Bel Airs here. The driving missions are still the daddy, and I was able to do all of the missions without cheats (unlike Driver 1, where the final mission was anything but possible).
When you need a taste of the Driver feel, buy the PC game of the original and leave the PSX games.