Buggies at Design Competition. Includes from right to left Flying Buttress (Fringe), T-2 (PiKA), Streak (PhiKap), Green Grunge (DTD), Snorpus (PhiKap), 825 (Beta). Probably 1973-1976.

1969 Prelims Heat 4 - PiKA’s Pithon leads DTD's Green Grunge (from the 1969 Thistle)

1971 – The Freeroll of Prelims Heat 8 (from the 04-29-1971 Tartan). From front to back: ATO A – Stinger (leading), PiKA B – T-2 (2nd, back right), DTD B – Green Grunge (3rd, back left)

1972 – Hill 2 of Prelims Heat 2 (from the 04-25-1972 Tartan). From Left to Right: DTD A’s Green Grunge (Lane 1), SigNu B's Sinex (Lane 2), PiKA A’s Pi-thon (Lane 3)

1972 – Hill 1-2 Transition of Prelims Heat 2 (from the 04-25-1972 Tartan). From Left to Right: DTD A’s Green Grunge (Lane 1), SigNu B's Sinex (Lane 2), PiKA A’s Pi-thon (Lane 3)

1975 – DTD’s driver gets his helmet adjusted (from the 1975 Thistle)

1975 – DTD’s driver gets his helmet adjusted (courtesy of the CMU Archives)

Hill 1-2 Transition of an unknown heat, possibly 1970 Prelims Heat 5, with Beta's POS being pushed up Hill 2 in Lane 3 (bottom right), DTD's Green Grunge pushed in Lane 1 (left), and an unidentified buggy, possibly the Dorms buggy, being pushed up Hill 1 in Lane 2 (top) (courtesy of the CMU Archives)

1970 - Prelims Heat 4 with DTD A's Green Grunge (left) vs SAE B's Bike Red (right) on the back hills (courtesy of the CMU Archives)

1972 – Hill 1-2 Transition of Prelims Heat 2 with SigNu B's Sinex in Lane 2 and DTD A’s Green Grunge in Lane 1 (from the BAA Gallery).

1970 - Prelims Heat 4 with SAE B's Purple (non-Arnold) buggy in Lane 1, PhiKap's Snorpus in Lane 2, and DTD A's Bitch II in Lane 3

DTD's Green Grunge gets pushed up the front hills, likely in 1973 (from the CMU Archives)

1977 - DTD B's Green Grunge enters the Chute in Prelims Heat 9 (courtesy of Frank Robb)

1971 - The Hill 1-2 Transition of Prelims Heat 8, with ATO A's Stinger in Lane 1 (left), DTD B's Green Grunge in Lane 2 (middle), and PiKA B's T-2 in Lane 3 (right) (courtesy of Frank Robb)