GMC Syclone Turbo AWD
The 1991 GMC Syclone shocked the automotive world by demonstrating that a pickup truck could be a legitimate performance vehicle. Based on the GMC Sonoma compact pickup, the Syclone was transformed by Production Engineering Services (PES) into a road-rocket that embarrassed sports cars costing three times as much. It remains one of the most significant performance vehicles of the 1990s.
The heart of the Syclone was a turbocharged and intercooled 4.3-liter V6 producing 280 horsepower and 360 lb-ft of torque. Power was channeled through a 4L60 four-speed automatic transmission to a full-time all-wheel-drive system borrowed from the Chevrolet Astro van, with a 35/65 front-rear torque split. The AWD system gave the Syclone incredible traction, allowing it to blast from 0-60 mph in just 4.3 seconds - faster than a contemporary Ferrari 348.
The chassis received extensive upgrades including four-wheel disc brakes, revised suspension with specific springs and shocks, and 16-inch aluminum wheels with Firestone Firehawk tires. The body sat lower than a standard Sonoma and featured a distinctive monochromatic black paint scheme (with a few special colors), body-colored bumpers, front air dam, and subtle Syclone badging. Inside, sport bucket seats and full instrumentation completed the package.
Motor Trend's controversial comparison test pitted a Syclone against a Ferrari 348ts in a straight-line acceleration contest - the truck won. This generated massive publicity and established the Syclone's reputation. However, the practical truck bed was essentially decorative, as GMC restricted cargo capacity to just 500 pounds to preserve the suspension tuning and protect the driveline.
Production lasted just two years (1991-92 Syclone, followed by 1993 Typhoon SUV variant). Only 2,998 Syclones were built, making them rare and collectible today. Clean, low-mileage examples command premium prices as they represent a unique moment when an American manufacturer proved trucks could be serious performance machines.
Verify VIN with Syclone club registry. Most were black, but red, white, and Marlboro edition (red/white) exist. Check for turbo boost leaks and intercooler condition. Transfer case and AWD system should operate smoothly. Four-wheel disc brakes should be upgraded (stock brakes undersized). Watch for rust in bed and cab corners. Many were modified, so original condition commands premium. Low mileage examples most valuable. Verify original engine and turbo system. Service records important as turbo maintenance critical.
1991: 2,995 units (mostly black), 1992: 3 special units (Marlboro). Total: 2,998 Syclones. Followed by similar Typhoon SUV variant in 1993. All modified by Production Engineering Services (PES).