In 1957, following a complicated litigation process over the right to use the by now increasingly high profile "NSU" name on passenger cars, the name used for the Fiat-designed cars was changed to Neckar, and with this name the company continued to produce Fiats in Germany until 1971.
Neckar was in the late 1950s producing fewer than 25,000 vehicles a year, Fiat 500 (Neckar Weinsberg), 600 (Neckar Jagst) and 1100 (Neckar Europa) slightly modified, often more luxurious and sporty than the Fiats produced in Turin.
The launch of the Fiat 1500 in 1961 and of the Neckar Panorama (derived from the Autobianchi Bianchina) allowed Neckar to reach a yearly production of 50,000 units in 1962. A coupe derived from the 1500 and called the Neckar Mistral was designed. A coupe and a convertible based on the Fiat 600 was produced as the Neckar Riviera. The Fiat 850 (as the Neckar Adria) was the last model produced by Neckar.
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