This 1969 Mack R600 Truck Proves that Diesel Heritage Never Goes Out of Style
A classic 1969 Mack R600 Truck featuring a diesel inline-six and a twin-stick 5-speed manual transmission heads to Indy 2026. This red-on-tan workhorse is equipped with a gooseneck hitch and a single exhaust stack, representing a bygone era of American industrial muscle.