In 1949, Fiat released the front engine Fiat 500 economy car to meet the demands of the post-war market. It had a 2-door coupe body with sun-roof, which was later complemented by an Estate version. Both continued until 1954 when they were replaced by an all-new, lighter car. The new car had a rear-mounted engine, on the pattern of the Volkswagen Beetle, just like its bigger brother the 1955 Fiat 600. Several car makers followed the now uncommon rear engine configuration at the time and were quite successful. The Neckar version of the 500 was manufactured in Heilbronn under a complicated deal involving NSU, and was introduced in October 1961. Steyr-Puch produced cars based on the Fiat 500 under license in Graz, Austria.