These computers would have to have top of the line components, so they would need to have LCD screens, powerful processors, and powerful graphics and memory cards (although not as important). The display needs to be very clear and easy to see so someone driving could easily follow directions without impairing their ability to drive safely. It would also be good to find a way to make these computers environmentally friendly since there are millions of cars on the road. Manufacturers should find a way to make the parts that is green friendly and doesn't contribute to the current problems of waste and energy use.