Hot Wheels Monster Trucks Rev Up 1:43 Vehicles. Huge Wheels & Modern Chassis! Pull Back & Release! Large Size & Amazing Design! The Action-Packed World of Monster Trucks. Crush the competition with the motorized Hot Wheels® Monster Trucks Rev Up vehicles. The 1:43 scale trucks feature monster-themed bodies, elevated chassis with huge wheels, and automatic movement. Pull back each monster truck and release it. Thanks to the friction motor, these beastly vehicles roll over obstacles and race across the ground at terrifying speeds! Colors and designs may vary from those shown. Hot Wheels® adds incredible design and huge wheels to the Monster Trucks that can overcome any obstacle. Their dynamic design allows these large vehicles to speed forward and upward, inspiring children's imaginations. These large vehicles are designed in 1:43 scale with amazing details and designs that kids will love. Kids can collect all the vehicles in the Monster Trucks Rev Up series and combine them with Monster Trucks sets and accessories (sold separately) for more fun and action-packed stories!