1. Burn incense while driving to make it cozy.
2. Make and sell a long MP3 CD specifically designed for a great road trip.
3. Clothes for cars. Car hats, car shirts. car pants…. you get the point.
4. Sunglasses that have a secret compartment for matches in them.
5. Emergency busses when it is really cold to pick people up and bring them to a warmer bus station for the same bus.