The GLH debuted in 1985 with a turbocharged engine option. Low boost of 7.2 psi and a low weight of 2,200 pounds are what gave the car its worthy moniker. The 1986 model was the same other than a hatch-mounted third tail light and that was where production stopped. The GLH cars were sold to Shelby who turned them into the GLHS.
These Shelby-modified cars were more powerful so they were differentiated as GLHS models which stood for “Goes Like Hell (and then) Some.” They had 175 hp and 175 lb-ft of torque. The boost was also improved. Shelby raised it to 12 psi by giving the car a larger turbocharger and a front-mounted intercooler.
Every Shelby GLHS also had Eagle GT Gatorback tires on Shelby Centurian wheels, Koni adjustable shocks and struts, and stiffer springs. They also had unique decals with the Shelby name and silver pin stripes. There was even a numbered dash plaque to make sure everyone knew that this was a truly special Omni thanks to Shelby’s tinkering.