This was William “Scotty” Hewitt’s first CO2 powered race car, #7, which won first place in the 1996 Sherline Machinist’s Challenge at the North American Model Engineering Society Expo. A small cylinder is charged with CO2 to power the geared rear end. Scotty carved both the body and driver by hand, too.

Scotty Hewitt’s miniature red #7 vintage race car, which is powered by CO2.

Exhibit added: August 14, 2008 - Last modified: June 22, 2023

Presented by The Joe Martin Foundation for Exceptional Craftsmanship