 It was originally available as the 18N and the 18S, for low and high octane petrol respectively.The C18NV was first installed in the Opel Rekord E2 from May 1985 and was one of the first catalysed mass market automobiles sold in Germany (and Europe).In 1983, the 1.8 L engine was added to certain North American market J-cars; the engines were imported from Brazil.