It would be fun with a remote control for vehicles. I know this has been made but in this one, the screen is not following the vehicle. Use remote and left click on a vehicle to control it, and then /Release (or something) to not control that vehicle anymore. R to control your blockhead again, R again to control the vehicle (This makes you able to walk longer away or to a higher place before start driving).
This combined with "vehicle events" so you can make your vehicle small, would be awesome.