In the 1970s, the People Powered Vehicle was produced. It was a two-seat, "sociable" tandem with a steel sub frame and molded plastic body. It was well designed and weighed something over 50 kg (110 lb); a recently restored version weighs 59 kg or 130 lb. However, it had flaws in the execution that doomed it as a practical, everyday vehicle. Positive features, such as easily adjustable and comfortable seats, independent pedalling for both passenger and driver, adequate cargo space and relatively good weather protection, could not overcome the negative features, such as a complex, heavy and badly spaced three-speed gear box, ineffective brakes, and pedals that slid on sleeve bearings on steel shafts, which made it difficult to use as an everyday vehicle.
