EXTRA A = Open left door
EXTRA B = Open right door
EXTRA C = Open hood
EXTRA A = Fog lights

The GMC Syclone, Typhoon, and Sonoma GT were built by GMC and PAS (Production Automotive Services) of Troy, Michigan, and sold through dealerships. At the time it was introduced, the Syclone was the quickest stock pickup truck being produced in the world. Auto magazines compared its acceleration favorably to a variety of sports cars including the Chevrolet Corvette and - in a memorable comparison test in Car and Driver magazine - a Ferrari 348 ts. The Syclone features a 4.3L turbocharged 6-cylinder engine with an automatic transmission and an AWD (all-wheel drive) driveline and 4-wheel anti-lock brakes.

Both the Syclone and Typhoon trucks feature a Mitsubishi TD06-17C 8cm² turbocharger and Garrett water/air intercooler attached to a 4.3 L LB4 V6 engine featuring upgrades that included: hypereutectic pistons, nodular iron main caps, upgraded head gaskets, intake manifolds, exhaust manifolds, and a 48mm twin bore throttle body from the 5.7 L GM Small-Block engine. All Syclones and Typhoons had a 4L60 4-speed automatic transmission. A BorgWarner 4472 all wheel drive transfer case splits torque with 35% of power going to the front and 65% of power to the rear wheels. Both trucks featured sport modifications to the standard suspensions. The Syclone was the first production truck to receive a 4-wheel anti-lock braking system. With this engine, the Syclone produces 280 hp (209 kW) and 350 lb⋅ft (475 N⋅m) of torque. The Syclone, when new, was capable of accelerating from 0-60 mph (97 km/h) in 4.3 seconds and could do a quarter-mile run in 13.4 seconds at 98 mph (158 km/h) according to Car & Driver's comparison test.

The Syclone and Typhoon's gauge cluster is the same one as used in the Pontiac Sunbird Turbo, which was discontinued in 1990, one year before the Syclone was introduced.

The 1991 Syclone was only available in black. For the upcoming 1992 production, a wider range of colors was to be offered however the Syclone was canceled before full production could begin. In total, 2,998 Syclones were built. Out of the 2998, only 3 were built in 1992. The #0001 1992 Syclone was used for DOT crash testing while the remaining 2 are privately owned.

Credits:
Model: FH4
Conversion: Opperslang
Wipers: mus001
Physics: VR Driving
Sound: SCIBSOUND