Parking is not easy and every driver is quite aware of that. That is why; they never want to be bothered if they are parking as that might become a reason for an accident to occur. However, drifting is much harder because there are some professionals that were sent to the hospital for trying this stunt. If you combine the two then that is double the danger. Tokyo is a place, where you will see something like this almost every night.
The idea of the game is drift while trying to park your car to the parking space. The computer will show you how its done and you need to follow it. You can't clashed with any ar or anything or that will be the end of the game.