One of the most popular sports today is the racing industry. Those racers would spend all the money they got to upgrade their cars and make sure that they can compete with the best. Though, they also want the money, their concern is more on winning the sport.
Drive your car as fast as you can till you reach the finish line. Use the booster to get ahead of the competition. This won't be an easy task, but this is certainly one rewarding career since you are going to do since the reward is really priceless. Aside from the money, you will also experience the excitement that every race brings.