The 2021 Hot Wheels US Walmart Exclusive Zamac 91 GMC Syclone HW Turbo 92/250 is a diecast model of a pickup truck. It is part of the Hot Wheels Zamac series and is a Walmart exclusive. The model is in 1:64 scale and is coloured in Zamac. The vehicle is a 1991 GMC Syclone and is part of the Walmart character family.