No. CAFE regulations started in the mid 70s. As it's evolved hand-in-hand with the auto industry, it's led to the death of the station wagon and the rise of the minivan, and only later did the proliferation of SUVs start.

Corporate average fuel economy (CAFE) standards are regulations in the United States, first enacted by the United States Congress in 1975,[1] after the 1973–74 Arab Oil Embargo, to improve the average fuel economy of cars and light trucks (trucks, vans and sport utility vehicles) produced for sale in the United States. -- https://en.wikipedia.org/wiki/Corporate_average_fuel_economy