Eric Forman's 1969 Oldsmobile Vista Cruiser

From Groovypedia, the "That '70s Show" Wiki

The 1969 Oldsmobile Vista Cruiser is the car Eric Forman got from his dad in The pilot. It serves as the main use of transportation throughout the series. Before he gets it he gets lectured by his parents about safe driving. in the first episode they use it to get to a concert in kenosha. in the same episode it's the place of Eric and Donna's first kiss (a major move as seen in It's a Wonderful Life)

Eric's dad took it back at some points in the series such as when eric confesses he has been smoking marijuana to keep hyde from getting kicked out, denting it because Kelso gave him a purple nurple and when he goes to california to confess his love for donna.

Red at one time accidentilly sold the vista cruiser during a garage sale while high on special brownies (unbeknownst to him) but they manage to get it back.