There were two engine choices available: a 1.1L engine and a larger 1.9L engine. The 1.1L engine made 67 horsepower and 62 lb-ft of torque and was coupled to a 4-speed manual. The 1.9L engine could be ordered with an optional 3-speed automatic transmission if desired. Buyers overwhelmingly chose the larger motor, causing Opel to discontinue the 1.1L engine after 1970.
During the car’s 8-year production run, a total of 103,463 cars were sold. The most collectable GTs are probably the first few hundred cars hand-assembled in 1968 and the 1968–1970 models with the 1.1 L engine, which totaled 3,573 cars.
More than 70,000 of these cars came to the USA. In North America, the GT was sold at Buick dealerships – similar to Ford’s strategy of selling the DeTomaso Pantera sports car through Lincoln/Mercury dealerships.
The Opel GT was well-received in its day, and was promoted as a “mini-Corvette” to those who wanted a sporty couple but couldn’t afford a Corvette. With its pop-up headlamps and quad round taillamps, the GT is a pretty distinctive little car, and I’m surprised you don’t see these things around more often!