Cadillac XP-74 Cyclone, 1964
The Cadillac Cyclone concept car of 1959 evolved into the 1964 XP-74, shown here with the fins cut down, as the car appears today.
Cadillac XP-74 Cyclone, 1964
Cadillac XP-74 Cyclone, 1964
Cadillac XP-74 Cyclone, 1964
Source: www.gmphotostore.com