5:1 steel gearbox - high torque and scale speed for WW2 tanks (Heng Long and Taigen plastic hulls only, Taigen metal hulls CANNOT fit)
latest model! Stiffer gearbox frame
Long driveshaft - Panther, King Tiger, Jagpanther etc.
in practice these tanks can fit too: Leopard, M1 Abrams, Challenger 2.
MT216