8. Opel GT
In the late ’60s, Opel, the German brand, was one of the most popular economy car manufacturers in Europe. Since General Motors owned the company, its design department approved and even styled all of the Opel models. That meant that most Opels looked like scaled-down versions of Chevrolets or Buicks. That was exactly the case with the GT, a sporty-yet-affordable coupe Opel presented in 1968.
Opel needed a sports car to base on the Kadett, its entry-level model. So in the mid-’60s, Opel got approval from GM to introduce such a vehicle. The design was heavily influenced by the Corvette and the GM concepts from the mid-’60s. Of course, with its 1.3 and 1.9-liter four-cylinder engines, the Opel GT lacked the power and performance of the Corvette, but it had the looks with its fastback rear end.