The future of transportation surely won't be limited to just cars, planes, and trains. It will most likely be filled with surprises. There could be hybrid vehicles and completely new ones. Here are some links to articles on various other methods of future transportation.
RUF vehicles - In this dual-mode transportation system, RUF (Rapid, Urban, Flexible) vehicles can ride individually or in a train of other RUFs on an elevated guideway.
Personal Transport Vehicles - The vehicle described in this article was developed as a prototype of future personal transport vehicles. This lightweight mix between a motorcycle and a scooter runs on a hydrogen fuel cell. There are many other products like this being researched, and this is just one example.
Flying cars and personal aircraft - For decades, flying cars have been the object of children's fantasies. This article discusses usefulness and impracticalities of flying cars, as well as personal aircraft.
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