The only 6 packs in 69 were the A12, M code Runners and Bees. They had E63 on the F-tags - they started life as 383 cars (on the production line). They have (except for a small handfull) an "M" in their VIN.
The rest of the stuff like 69 6-Pack R/T's with hinged fiberglass hoods is a new one on me.
