On September 14, 1990, the Syclone LSR from GMC Truck rewrote the record books by becoming the first truck ever to break the 200 mph barrier in the flying mile. This specially modified Syclone clocked an amazing one-way speed of 210.069 mph in the IMSA speed trial.
For GMC Truck, the Syclone LSR represents our commitment to leadership in truck technology. You’ll find every state-of-the-art advancement in engine design, fuel management, aerodynamics, handling and performance-tuned suspension in the new Syclone street machine.
In January 1991, GMC Truck introduced to you the hottest truck ever to roam the planet. Your Syclone has a 280-horsepower, intercooled, turbocharged 4.3L V6 engine at heart. Its handling is clean and precise, with on-road all-wheel drive, 4-wheel anti-lock brakes, and speed-rated tires rounding out 16″ aluminum wheels. Plus, with an M.S.R.P. of just $25,500,* it’s a downright steal.
