the redesigned car. Shortly after this Brissonneau encountered financial difficulties. Cooper, hoping to get the car into production, arranged, with Brissonneau's approval, for the Heuliez company to take on responsibility for development. A running prototype was completed in just two and one half months. The car was displayed at the 1970 Paris Auto Show on the Heuliez stand as the Heuliez Murène. It did not reach production. Heuliez bought the Murène from Brissonneau in 1971 for ₣24,250. In 2012 the car was sold at auction for €42,889 . Hispano Alemán Vizcaya Businessman Werner Bernhard Heiderich was the importer of Porsche for Spain. He established a company named Hispano Alemán to build and sell customized cars. Heiderich contracted with Pietro Frua to produce a new body on a Porsche 914 platform. The car, named the Vizcaya, was first shown at the 1971 Geneva Motor Show. Swiss authorities seized the car owing to a dispute over it between Heiderich and Frua. Heiderich eventually prevailed, and the car next appeared at the 1972 Barcelona Motor Show. The Vizcaya did not go into production. Porsche 916 Planned for the 1972 model year, the Porsche 916 program was cancelled after eleven prototypes were built. The car came with aerodynamic front and rear bumpers and either the 2.4 L engine from the 911S, or the 2.7 L from the Carrera. It was also to have a fixed steel roof, wider wheels, double grilled engine lid, and flared fenders as styled from the 914-6 GT cars. Ventilated disc brakes were fitted to all four wheels. The 916 also used a "mid-engined" version of the then-new 915 transmission, giving a conventional shift pattern with one to four in an H and fifth out on a limb. One 916 was built to US specs and on delivery to the US was fitted with air conditioning by the dealer (Brumos) and has been housed at the Automobile Atlanta 914 museum since 1990. Nordstadt Carrera Käfer (Nordstadt Carrera Beetle) Günter Artz was director of the Hannover Volkswagen dealer Autohaus Nordstadt. In 1973 Artz and Nordstadt unveiled a custom car called the Carrera Käfer that mounted a modified Volkswagen Beetle 1303 body on a Porsche 914/6 chassis. The engine was upgraded to a flat-six from a Porsche 911 Carrera that produced . GM XP-897GT First shown in 1973, General Motors (GM) built the Corvette XP-897GT concept car to showcase their rotary engine