The main purpose is to make it to the finish line with your cargo within a given time.
There are special vehicles that you can ram into that will add three seconds to your time. They look like purple Chevy Astro Vans. After Stage 1, the game gives the player a choice of trailer. One trailer is harder to haul, but provides a bigger payoff while the other choice is easier to haul but provides a smaller payoff. Money is deducted from the total when the trailer is hit.
