Just do i what i do RAM THEM.

You should see the looks on their faces when they pull out and my hummer wrecks them. It costs me $5 to respray the steel bar, however their car is totalled. Last guy cried, his bmw engine was pushed out the side of the passenger. I was doing 65mph he pulled out, tore him in half almost.
He was lucky he was in a BMW the cars safety features saved his life.

Hummer $50,000. Construction I Bar $300 including specialist fitting. Spray midnight black $5. Look on a drivers face when the pull out and you cant stop, and the bar smashes them like a toy, priceless.

IMPORTANT EDIT: I do not deliberately ram them, my hummer weighs just under 3 tons, i physically cant stop if they pull out in front of me.