"PGR4" is without a doubt, 2007's best racing game. The improved graphics, the majestic weather effects, vastly improved handling and a robust multiplayer mode are a great start. But the restructuring of the career mode not only adds length and depth to the game, but most significantly, makes it far more fun than any other game in the series.
There is also more variety, which is the real kicker, as this is where it blows away the more serious, and also excellent, but RPG-like Forza 2 away, because it never feels like a grind getting to rank 1, unlike in the former game. "Project Gotham Racing 4" is a superb game, and a must-have for any 360 owner. A fitting end to the series.