Fantastic guy, that David Coleman. His current project is a Hayabusa-powered Miata.
You can read details on Sipster on his current website/publication, here:
http://www.motoiq.com/magazine_artic...t-sipster.aspx
Whole buncha nerdy technical stuff on motoiq.com. If you like cars, you should like what's there. They even did some modification on a puny Honda Ruckus.