whenever i park my car somewhere at risk (although my car isn't worth much, dollar wise), i losen the coil wire, take off the clip on the shifter cable i have on my after market shifter so putting into gear will require some attention, as well as a starter kill switch and ignition kill switch, along with a big switch for the battery, and don't forget about locking the doors. also looking to put in a fuel cut off sometime soon. all simple stuff and easy to do, but i know it'll take someone really desperate to wanna steal my car to figure out all the little stuff, or they could just tow it away...