You are completely sane!
I have done it many times myself, especially when I come back at night I just get out when the engine is still running and the lights are on. What an incredible view!
A lot of people cannot believe or understand how can someone be attached to pretty much a "piece of metal". I believe it has more to it, it becomes part of your personality and besides the majority has to drive a car to work or to places, why cant this car be nice and enjoyable? Obviously, we are not in the "I need a car to go from Point A to Point B" mentality are we?