Ford Chairman Henry Ford II himself purchased a 1971 Runabout (hatchback) to use as one of his personal cars. Initial planning for the Pinto began in the summer of 1967, was recommended by Ford's Product Planning Committee in December 1968, and was approved by Ford's Board of Directors in January 1969. Ford President Lee Iacocca wanted a 1971 model that weighed under 2,000 pounds and that would be priced at less than US$2,000. The Pinto product development, from conception through delivery, was completed in 25 months, when the automotive industry average was 43 months, the shortest production planning schedule in automotive history at the time. Some development processes usually conducted sequentially were conducted in parallel. Machine tooling overlapped with product development, which froze the basic design. Decisions which threatened the schedule were discouraged; the attitude of Ford management was to develop the Pinto as quickly as possible. Iacocca ordered a rush project to build the car, and the Pinto became known internally as "Lee's car". The Pinto's bodywork was styled by Robert Eidschun. Offered with an inline-4 engine and bucket seats the Pinto's mechanical design was conventional, with unibody construction, a longitudinally mounted engine in front driving the rear wheels through either a manual or automatic transmission and live axle rear end. Suspension was by unequal-length control arms with front coil springs; the live rear axle was suspended on leaf springs. The rack and pinion steering optionally had power assist, as did the brakes. On September 11, 1970, Ford introduced the Pinto under the tagline "The Little Carefree Car." After structural design on alternate body styles encountered obstacles, Ford offered the Pinto solely as a two-door sedan, with entry level models priced at $1,850, undercutting GM's Chevrolet Vega and directly targeting imported models – which included such new competitors as the Mazda 1200 in 1971, the Subaru DL in 1972, and the Honda Civic in 1973. The Pinto had sold over 100,000 units by January 1971, and 352,402 for the entire 1971 production run; 1974 saw the most Pintos produced in a single model year, with 544,209 units. The Ford Pinto went on sale on September 11, 1970 in one body style, a fastback sedan with an enclosed trunk. A hatchback became available on February 20, 1971, debuting at the Chicago Auto Show. In 1971, the Pinto brochure came with a paper cutout Pinto that one could fold to make a 3D model.