It's sad that you can literally have so much fun, and no matter how great it seems, it still doesn't seem like there is enough here. I have played Crazy Taxi for hours and hours and hours. And while it's one of the best games I have ever played ... it just doesn't have enough to stand on its own for long.
There is so much good to say. I love the voice announcer, something I generally hate. Even though there aren't a lot of different taxis, the four (well, five) you can choose from are great, and the drivers are humorous. The handling of the car is first rate, and when you get all the little things like quick boost, power slide, etc, you will find the car only being easier for you to you.
Since the structure of the game is more about going up and down town, weaving in and out of traffic, as opposed to simply racing the attention to the detail of these huge cities is remarkable. Plus the hidden stuff hidden through out the two major urban centers are both fun to find, and huge shortcuts if done correctly. And throughout the levels the graphics are sharp, and even though there are slowdowns, the game generally moves along at a brisk frame rate.
The music houses four song, though. And since two of the songs are Bad Religion, and the other two are done by the Offspring. While both of those bands fit the bill, and pad this game nicely ... I can't help but notice that all of these songs are pretty hard to discern after a while