Found a U-code 70 Challenger, buckets, auto, console, 8-3/4, drum brakes. Seemed pretty run of the mill until I checked the exterior codes.
B3 Blue
B5 vinyl interior
Black vinyl top
BLUE longitudinal stripe (Yes, I double-checked, it's NOT V68)
Ballpark figure on how many were made?
Naturally, like most cars around here, it's been sitting semi-apart and unregistered since the early 80's and it's only for sale "for the right offer".