According to the video below they have a Yamaha R1 motorcycle engine in that thing. Very cool, where's my flying motorcycle?!
http://www.skycarexpedition.com/the_expedition.php

I'm reminded of an episode of This American Life that discusses vaccines:

http://thislife.org/Radio_Episode.aspx?episode=370

"Stories of people who ruin things for everyone else...or who are accused of that. Like the San Diego parents who didn't vaccinate their child for measles (pictured at left: measles virus). When their seven-year-old caught the disease on an overseas trip, this decision became a whole community's problem. The outbreak infected 11 children and endangered many others."

Ditto. I wish lane splitting were legal in AZ, but when I'm sitting in 110F in my leathers I declare lane splitting season open.