Backlink:
http://blank.antville.org/stories/642314/

A X-wing Car mod, seriously nerdy
http://cs.baylor.edu/~wilsonj/xwing.html

http://stardust.jpl.nasa.gov/tech/aerogel.html

Aerogel Quick Facts

It is 99.8% Air
Provides 39 times more insulating than the best fiberglass insulation
Is 1,000 times less dense than glass

Some amazing shots of it on this site...