Racing is not easy since there is always danger attached to it. All the racers that competes in such race events are fit not only physically, but mentally as well. They spent lots of time preparing for the said event before they would go for the actual race. You might see some of them like they are some kind of speed demon, but they got scared every time they does it since they knew the danger. Now, that is a reason enough; why racers won't use a truck in a race. Though, it have a powerful engine, its body is to big, which will be a disadvantage in a race.
However, in this game, that won't be the case as you are going to use a truck to race. you would compete with two other trucks and the goal is to finish the truck in first place. There are challenges in a level and inside that challenge there are three more challenges. The game gets harder and much more challenging as you make some progress. You earn money if you manage to meet the challenge at hand. You can use the money to buy some upgrades for your truck.