More R-model chassis have been built and registered than any other class-8 vocational vehicle — around 360,000 since 1965, figures the maker, Mack Trucks. With more than 200,000 still at work, the ...

class-8 vocational vehicle–around 360,000 since 1965, figures the maker, Mack Trucks ... A special limited-edition R-Model Legend is available (pictured, left), tricked out with special paint, badges, ...