Think you know your cars? Then try the below automotive puzzle highlighting headlights of vehicles that are currently listed on AutoHunter. Sealed beam headlights were introduced on all American cars for 1940. In 1957, quad headlights became legal in all 48 states and, in 1974, regulators permitted rectangular sealed beam headlights. For 1984, the Lincoln … Continue reading Which Automobiles Used These Headlights?