 A Kristi-Washington KT3 brochure shows the later model KT3s were equipped with a 53 hp VW engine, or alternately with a Porche (sic) engine.The brochure offers both new and remanufactured KT3 models for sale from the Washington facility.It lists the top speeds of the KT3 at 20 mph when powered by the VW engine, and 25 mph when powered by the Porche (sic) engine.