Magic Tricycle

The Magic Tricycle is a unique concept because
it can be ridden on all three wheels on highways
or wider roads, but on more tighter
roads or in traffic jams, it can be rotated around
a longitudinal axis running from the front to
the rear right wheel with the left wheel raised
into the air so it can be ridden as a motorcycle.
Tricycle by Seyyed Javad Ghaffarian.

Read more: http://www.cars-show.org/motorcycles/magic-tricycle.html