WHEN FEDERAL REGULATIONS CHANGED THE FACE OF CARS
For a car designer, the early 1970s were pretty tough times. New federal regulations announced in 1971 for the 1973 model year stipulated bumper height and mandated that cars survive a 5-mph frontal collision without damage. Over a three-year period, from 1973 to 1975, the look of cars sold in North America went through some radical changes.
This is a companion discussion topic for the original entry at https://www.hagerty.com/articles-videos/Articles/2015/11/09/Bumper-Cars