* Heavy Diecast Chassis
* DC Motor with 5 Pole Skew Wound Armature
* Precisely Meshed Worm Gear & Spur Teeth for Silent Running
* Prototype Specific Details Including:
-With or Without Dynamic Brakes
-With or Without Drop Steps
-Two Styles of Class Lights
-Standard or Large Fuel Tank
* Proto 2000 Magnetic Knuckle Couplers