Here is a vehicle that is registered and insured as a Motorcycle-Trike...... and is LOTS of fun to ride/drive.

You drive it like a car
You shift gears like a motorcycle (sequential)
Your passenger sits next to you like a car
Your butt is 4 inches off the ground
The 3 wheels have car tires
It has 3 automotive brake rotors
POWERED by Kawasaki Ninja engines (ZX1100, ZX1200 and ZX1400) and for 2013 the new BMW 6 cylinder motorcycle engine.
In production since 1995 (18 years), became legal to import into the USA in 2001. Manufactured in Canada
This is NOT your grandfathers trike


http://www.youtube.com/watch?v=LOsYo9Sv43E