If you want to take part in a racing event, you would need to not only be fit. You should also prepare your mind since it is really hard. And if you are a daredevil, it would be a lot tougher since you would take things further as such you had taken racing to a different level. You are driving your sport car to the rooftop and simply drive your car from building to building to get where you want to be. This is the most extreme thing that you can do with your driving skills, but pretty sure that no one would attempt this. In fact, even the daredevils won't try this simply because their life also matters to them.
Fortunately, you can do that in a game and you can experience driving at its craziest without throwing away your life. In this game, that is what you need to do as you would need to drive your car through rooftop buildings to get to where you want to be. The game has a timer, so you would want to speed things up and use the booster. You would need to get the special booster fuel to use it. Grab as many coins while you are it, so that you would get enough money to upgrade your car.