My local library is lending out games now, and Project Gotham Racing 4 was one of those titles. Now I remember when the first game hit the Xbox. Most gamers were wondering what racing games had to do with Batman. Apparently there's no relation, it's just a pretty awesome racing game.
PGR4 seems to carry on the quality of the series since I stopped paying attention. I never cared much for the Gran Turismo games, so I frankly ignored most of the other racing games on Xbox and Xbox 360.
But I honestly really like the game so far. I frankly expected to play maybe an hour of it before I got bored, but I played it until my body told me to take a break. I love the kudos system, and they do have an easy mode for games with weaker driving skills.