[header] How to hotwire a car [title] Enter the car. [step] Do not break into a car unless you own it and have documentation to prove it. Be aware that forced entry will set an alarm if the vehicle is equipped. 
[substeps] This method, and in fact most methods of hot wiring a car, will only work on cars older than the mid-90s. Newer models are equipped with a whole host of locking mechanisms in place to keep you from hot-wiring the car unless you're intimately familiar with the quirks of the model.