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Concept Typhoon

-the name "typhoon" hadn't even been authored at the time of this drawing, so "syclone" was used.

Typhoon Clay Model

-All the fascias and cladding were made of clay. The front turn signals and fog/driving lamps were made from paper and just colored or rendered to appear real. Rear Spoiler and 1991 Syclone mirrors. 

1991 Prototype Typhoon

-GMC Promotional video vehicle

1991 Prototype Typhoon "Shamu"
1991 Prototype Typhoon

-No cladding, jimmy interior

Jimmy Z-34

-Full 1993 Typhoon interior. No cladding. Dubbed the '94 prototype. 

All Prototype 4 door Typhoons
Chevy Typhoon

-full typhoon pkg, with corvette center caps. Used to market test the typhoon pkg in Europe where GMC had no license at this time.