I guess I should have mentioned the close relationship between the Herbies and the twins- Arty and Marty (Per Arte et Marte- "By Skill and By Valour" sometimes translated as "By Skill and By Fighting") is the motto of the Electrical and mechanical Engineers): these hard working specialists and technicians are the Yang to the Herbies Yang: we break 'em and they fix 'em!
The LAD is the Light Aid Detachment and I suspect Herbie's truck is a bit beyond even their almost magical ability to keep 'em rolling!
to the RCEME!
Mike