[uileini]

This must have been studied at some point.

Let's consider a highway with 70 mph limit and 40 minimum. I often see highways with three lanes of asphalt and one of concrete, the fast lane. Will that affect work done by the car? Also, consider using the AC or heater versus applinked having the window down. Then, automatic versus manual transmission. We could also consider stop and go traffic in the city.