All machines one end is to be broken or shattered. Do not wait until the machine rot themselves, break their own. Everything is simple and clear, that click with your finger on the car and it will crush believable. Twist and turn the 3D model as you want. To some extent, you can even see how the car would suffer if a particular impact. Make your Sim accident. Realistic sounds and graphics will help you to imagine that you are like a bud that are breaking this machine. Fun games!