They made it out of the regulation Pinewood Derby block of wood, Billy, which has these dimensions: 1-3/4W x 1-1/4H x 7L inches, offset 1/8 inch deep axle slots, with a wheelbase of 4-3/8 inches.
I snagged these pics from Facebook and made sure Scott was OK with them being re-posted here.
From his reply to me:
Thanks for the compliments. I don't mind you showing it there at all.
A lot of hours went into building that little block of wood, and we actually had to build it twice, because a corporate Dremel employee accidentally knocked the car out of my son's hands during a group photo at the 2005 Allstar race. The car hit the asphalt and shattered. Several parts had to be completely remade. Other parts were badly gouged or scratched, and the car had to be sanded down to wood, and repainted in order to bring it back to life for the advertising photos that were shot a few months later.