The EU is proposing a different type of "train," which would be comprised of a mixture of trucks, buses, and passenger cars closely following one another in a slipstream, much as race cars do at professional tracks. The project's acronym is SARTRE (SAfe Road TRains for the Environment).
The lead vehicle would be handled by a professional driver who would monitor the status of the road train. Those in following vehicles could take their hands off the wheel, read a book or watch TV, while they travel along the motorway. Their vehicle would be controlled by the lead vehicle.
The idea, of course, is to improve fuel economy and to relieve congestion by allowing a greater number of vehicles to occupy a given area of the roadway. But notice how this concept also solves the problem of texting-while-driving, by removing the "driving" component and allowing the driver to spend his/her entire time texting. Sounds perfectly logical to me. What could possibly go wrong?
Addendum January 2011: The BBC is reporting that field trials using real vehicles have now gotten underway in Sweden.
Once the lead vehicle is in charge, the driver of the car is seen taking his hands off the wheel, reading a newspaper and sipping coffee as the journey proceeds.