Maintaining the engine is as easy as working on a bench. This picture also shows the linkages for the speedlimiter. All these cars are limited to 25kph. The base unit is manufactured by VDO and the wizardry to make it function at the low speed and to withstand the underground environment is carried out by Remote Control Technologies in Perth. The modular dash has everything plus an engine protection system.
Electrical repairs are a piece of cake.
Any problems, rip out the dash, fit an exchange unit and send the failed dash away for repairs. The dashes are designed and manufactures in Perth by Remote Control Technologies. The original Toyota brakes are removed and fully enclosed, oil immersed wet disc brakes are fitted. These brakes last the life of the cars. The original Toyota brake pads had to be change every two weeks and the callipers would have to be changed out every six weeks.