really nice driving game, good upgrades and average 3D graphics. The challenges are "normal" meaning that an average player can enjoy the game easily, and that's a really good thing!
The movement and scrolling of the car, the buidings and the landscape are good, but on level 7 there must be a bug. You start with almost no time at all to complete the level!!!
Overall, it's a really nice taxi game, just fix this bug.