The original Driver game for the Playstation was considered to be one of the best driving games ever. It was a lot more than just a generic point A to point B racing game, as you also had to do missions along the way, often going against the police who were very aggressive in stopping you. To top it off, they had some of the most realistic and amazing graphics at the time, considering how big the game world is.
Then the second game came out, and it all went downhill from there, crapping out on the graphics, style and overall gameplay and turned into a shitty GTA clone. Basically, it tried to be something it's not when Infogrames/Atari got a hold of the franchise, and a potentially amazing series simply went down the drain.