For this kit

The old diesel engine was ripped out

Truggies have been a major part of the HPI off-road range for many years

and spacers

BlackZon - Vyper RX 1/16 4WD Rally Car - Green Electric Motors Airplane For this kitThe Vyper RX packs big short course attitude into a compact, go anywhere machine built for hard driving. Shaft driven 4WD puts the power down with confidence, while the tough composite chassis and oil filled shocks keep it composed when the surface gets rough. With planted handling and predictable control, it feels just as at home on dirt and gravel as it does on tarmac. Includes: ESC: Blackzon BR14 200 2 in 1 ESC Receiver MOTOR: Brushed Motor 390