Peterbilt hybrids?

[myshtern]

I just learned Peterbilt has a line of hybrids - that's freaking cool.

http://www.autobloggreen.com/2007/05/21/wal-mart-receives-its-first-peterbilt-hybrid-big-rig/

http://www.peterbilt.com/pdf/386h.pdf

This will get really interesting now that the transportation industry is picking up on fuel efficiency.

[HONDA GHANDI]

Very cool. I wonder what kind of efficiency increase over a standard tractor it provides in the long haul.