Opel Tech 1

The Opel Tech 1 Concept was a research vehicle and concept car developed by Opel when it was a subsidiary of General Motors. It was exhibited at the 1981 International Motor Show Germany in Frankfurt, was designed by Erhard Schnell, and was based on the fourth-generation Opel Kadett D using the platform called the T Car. The design aimed at aerodynamics and reached a drag coefficient of 0.235 cw, helped by a panoramic windshield. Some of its features reached production on the 1984 Opel Kadett E and the 1986 Opel Omega, and its wheel design became an alloy wheel option on the Opel Rekord E2 and Vauxhall Carlton. All controls except the steering wheel, gear lever and foot controls were push buttons.