The movie Tron must have had a profound effect on GM's marketers, who apparently decided that the semi-computerized Quadrajet on the Firebird's 305 engine was really a time machine!

Of course, the Trans Am could be had with the more futuristic (and more terrible) Cross-Fire Injection fuel-injection setup, so that the pleathered-out babe can end up hitching a ride out of the mainframe in a passing '73 Buick Electra.