This wasn’t your father’s GMC Sonoma, and it also wasn’t a full pickup truck. Instead, this was a sports car with a pickup truck body that broke all the rules when it hit the road. The Syclone had one of the most powerful turbocharged engines that GM ever used in a production vehicle. For a short period of time, it was the fastest production car on the market (via Top Speed).
The GMC Syclone was one of the most powerful sports trucks of its time and it showed the world what GM was capable of. It also had some of the best reliability numbers of the time too thanks to being built on the solid S-Series platform. Few cars have revolutionized an entire segment the way that the GMC Syclone did when it hit the market.