GMC Typhoon

The Typhoon was a high-performance version of the GMC Jimmy SUV. Produced in 1992 and 1993, the Typhoon was based on the 1991 GMC Syclone pickup truck. Another vehicle, the GMC Sonoma GT, offered less performance but was seen as a companion model.

Both the Syclone and Typhoon (SyTy) trucks featured a Mitsubishi TD06-17C/8cm2 turbocharger and Garrett Water/Air intercooler attached to a 4.3L LB4 V6 engine with unique pistons, main caps, head gaskets, intake manifolds, fuel system, exhaust manifolds, and a throttle body from the 5.7L GM Small-Block engine. All SyTy's had a 700R4 (4L60) 4-speed automatic transmission and a BorgWarner 1372/4472 transfer case splitting torque with 35% forward and 65% to the rear wheels. Both trucks featured all wheel drive, upgraded brakes, and sport modifications to the standard suspensions. Output was officially 280hp (209kW) and 360ft·lbf (488N·m), but some stock Typhoons have been measured at over 300hp (224kW) on a dynamometer.

The Syclone was capable of accelerating from 0-60 mph in 5.3 seconds and could do a quarter-mile run in 14.1 seconds at 95mph (153km/h). Car and Driver was impressed, comparing the Syclone's performance favorably to the Ferrari 348ts, Chevrolet Corvette, and Nissan 300ZX Turbo. It was a bargain at US$29,970, though the magazine criticized the plasticky interior pieces.

All three trucks were built for GMC by Production Automotive Services of Troy, Michigan. 2497 Typhoons were built in 1992, and 2200 in 1993.