how to open a new car:
You need to pass track in less than 10 seconds driving on the last opened car.
car damage:
Car gets damaged if tachometer needle hits the red zone, or if you tap on "change gear" handle while holding the accelerator pedal.
how to shift gears:
You need to find the perfect area to switch, it is usually between 8000-9000rpm.
If you change gear when tachometre is below the perfect rmp area - this will decrease car speed, If you change gear when tachometre is higher than the perfect area, car will be damaged.
You can't shift gear down.
Finish and global Ranking:
Top Speed and Time results are shown at the finish line, these results will fall into Global Ranking of GameCenter.