Everything would defend on how much you want to win because this is a race. Yes, it is true that others, who have joined this race also got the same intention as you and it all comes down to your ability when it comes to racing. However, there are times that you would need to be courageous since all you have in this race is you and when you can't be at your top level then the other racers would surely eat you up. Not, entirely eat you up as that is just a figure of speech, but it has something to do with the fact that you would surely loose.
Drive as fast as you can till you get to the finish line. Well, that is the idea and that is what you need to do if you want to win the race. You only have a limited time and you need to reach a certain point in the race to be able to extend your time. As you drive your car, your booster slowly builds up. You would need the booster to catch up or get ahead of your rivals. You do want to win the game and claim the reward money. You can use it to buy upgrades.