These cars were sold in the United States with a 1.1 liter OHV I4 engine standard. The 67 horsepower produced by this engine was not enough for most American buyers, so the majority were sold with the upgraded 1.9 liter Cam In Head engine that made 102 horsepower.
With a front engine and rear wheel drive in this small car, the Opel GT was certainly fun to drive. There were some quirky features, however, that turned off some potential buyers.
The pop-up headlights on the Opel GT were... well, interesting. They were not controlled electronically, but rather by a manual level in the center console. Rotating the headlights was a task few drivers looked forward to.
Opel GT parts are often the same as the parts used in other Opels, especially the Kadett B. Rekord E and Manta B engines can also be swapped into the Opel GT for better performance and fuel economy.
There is a new Opel GT being produced on the same platform as the Pontiac Solstice and Saturn Sky. It is sold mostly in Europe.
You can buy classic Opel GTs in the United States from a variety of places. There are some dealers who specialize in these types of cars and other European-designed cars from that era. In addition, there are always lots of sellers on eBay selling Opel GTs and parts. That's where I'd go first, because the prices are often shockingly low.