2. Opel Diplomat V8 Coupe
The German car manufacturer, Opel, was one of the biggest GM companies outside the U.S. For almost 90 years, from 1929 to 2017, GM owned Opel. And more than a few times, the parent company influenced the design of its models. One of the American cars they produced in Europe is the glorious Opel Diplomat V8 Coupe from 1965 to 1967. The Diplomat was Opel’s luxury model.
While the base versions got 2.8-liter six cylinders, the top-of-the-line Diplomat Coupe got Chevrolet’s 327 V8 engine. Its overall design was reminiscent of Chevy’s mid-size and full-size models. They came with the Powerglide automatic transmission, so it was easy to mistake the Diplomat V8 Coupe for a U.S. model. However, since Opel was an economy car manufacturer and the Diplomat Coupe V8 was expensive, they only produced 347 of them.