Plastic automotive engine
Version one was based on Ford's 2.3-liter Pinto engine and weighed (vs. for its cast iron counterpart). It was designed to produce at 9200 rpm. It was composed of metal cylinder sleeves, metal combustion chamber tops, metal piston crowns, bearings, valves and seats, and a stock 2.3L Pinto crankshaft. Nearly everything else in the engine, including the block, rods and piston skirts, were made of glass reinforced Polyamide-imide thermoplastic resins manufactured at the time by Amoco Chemicals Co. The engine was never installed in a vehicle.
Ford Pinto
In 1973, Ford's Environmental and Safety Engineering division developed a cost-benefit analysis entitled "Fatalities Associated with Crash Induced Fuel Leakage and Fires" for submission to the NHTSA in support of Ford's objection to proposed stronger fuel system regulation. The document became known as the "Pinto Memo". Cost-benefit analysis was one tool used in the evaluation of safety design decisions accepted by the industry and the NHTSA. The analysis compared the cost of repairs to the societal costs for injuries and deaths related to fires in cases of vehicle rollovers for all cars sold in the US by all manufacturers. The values assigned to serious burn injuries and loss of life were based on values calculated by NHTSA in 1972. In the memo Ford estimated the cost of fuel system modifications to reduce fire risks in rollover events to be $11 per car across 12.5 million cars and light trucks (all manufacturers), for a total of $137 million. The design changes were estimated to save 180 burn deaths and 180 serious injuries per year, a cost to society of $49.5 million.