Hey Ford,
How about adding a "true" keyless entry to your vehicles? I have a Toyota Prius (actually 2 of them) and all I have to do is walk up to the car with the fob in my pocket and touch the door handle and it unlocks. Once inside, I can start and drive the car while leaving the fob in my pocket. It is fantastic!! A few simple proximity sensors and this is quite simple to build. If I walk up to the car at night, the dome light comes. It is a very smart design.