The world is tough and so you need to be tough if you want to live in this world. People won't show you respect if they see you as someone they just can step on. This is also applicable to the racing world as you need to be tough in order for you to get to the top.
Drive your car as fast as you can, but try to avoid other vehicles on the road. Getting your car wreck is not toughness, but being stupid. You would end up in the hospital or the cemetery if this is a real game. Grab some nitro to replenish your nitro bar.