Former crew chief Tim Brewer provides the on-air personality for a traveling production team that produced in-race informational segments during Nationwide and Cup Series races. The enclosed studio includes a Chevrolet Cutaway Car as well as displays of engines, transmissions and shock absorbers.
Two tractor-trailer rigs, one with the studio and one as a support trailer, travel the country from race to race to make the Crafsman Tech Garage possible. Along with car parts, the moving garage and studio has mutiple plasma-screen televisions.
Still, it's most important element is Brewer -- who always shares his expertise in a manner that informs without insulting.
For more, see "In Depth: Craftsman Tech Garage" link on upper right of page.