On Car Games To Play blog I have read recently cool and funny review  of one of the car games. And certainly it  is the most popular now GTA 4. The review is called Grand Theft Auto IV - The Whole City Will Be
Ours!

And as far as I understand from review we have unbelievable freedom to do what we want in new GTA. That is what has written author:

"This world is indeed alive, not by itself, but together with us. He responds to us, and constantly reminds its presence with scenes of immediate natural reaction of residents. Graphics is great, physics is almost perfect, and storyline easily get 40-80 hours of your free time. And, then you can just live in this wonderful city, to gather secrets from, the chasing police, to perform various tasks, relax in cabarets, watch TV and metal darts in darts. Virtual reality is already very close. Rather than to withdraw from home and entertain somewhere, we load GTA 4 and with the company of Niko Bellik send himself to new adventures. The Rockstar managed to add to the game so much diversity of content, that even after month playing we can find something new."

Well, read this full review on Car Games To Play blog. I do think you really like it.