The term VW predecessors refers to the models of cars that preceded the Volkswagen brand. The three solutions for this term are STU (3 letters), RSTU (4 letters) and TEETHES (7 letters). STU is an acronym for Standard Utility Vehicle, which was a model of car produced by Volkswagen in the 1950s. RSTU stands for Rear-engined Standard Utility Vehicle, which was a model of car produced by Volkswagen in the 1960s. TEETHES is an acronym for Transporter Experimental Electric Truck High Efficiency System, which was a prototype electric truck produced by Volkswagen in the 1970s.