The Opel Tech 1 Concept was a research vehicle and concept car developed by Opel, which was a subsidiary of General Motors at the time. It was exhibited at the 1981 International Motor Show Germany (IAA) in Frankfurt. The car was based on the fourth-generation Opel Kadett D and used the platform, which was called the T Car. The vehicle was designed by Erhard Schnell[1] and foreshadowed some of the design aspects found on production Opel/Vauxhall cars released throughout the 1980s.