Okay, so add this to the mix. Anyone with the motivation, patience, and know how to defeat a decent lock will not think twice about breaking the window on your car and opening the hatch to liberate your bike from your car.That is still outside the car. My bike is already too valuable to leave out there (and getting more valuable all the time). I ride every day somewhere, and once I start competing will be travelling over most of central California. Because of all the riding, having the bike in the car at all times makes a lot of sense. Protection from the weather is an added bonus.