Lotus Elan is the name of two separate ranges of automobiles produced by Lotus Cars.
Circa 1962 to 1975 the first range of cars comprised:
Two seater sports cars:
Four seater sports car (rear seats suitable for children): Lotus Type 50, fixed head coupe, marketed as the Elan +2
Once the S2 was released the original Elan 1500 and Elan 1600 models were typically referred to as the S1 (Series 1) although the car was never explicitly marketed as such. Today, all models (S1-Sprint) are often cited collectively as the 1960s Elans.