Glad you asked...
There are many was to sabotage a car! Hitting it with a baseball bat, popping tires, spray painting the car and pouring sugar in the gas tank. I do not recommend doing any of these though!
Then again, this answer might help you...
To sabotage a car, you can puncture the tires or put sugar in the gas tank. But, if you're caught, you could wind up in prison. Why would you want to do that?

