Computerised engine analysers for vehicles; code scanners; central processing units; computers; data processors; tapes, floppy discs and compact discs having recorded computer programmes; microprocessors; compact discs; disks; floppy disks; modems; monitors (computers); thermostats for vehicles; automatic indicators of low pressure in vehicle tyres; measuring devices, electric; voltage regulators for vehicles; simulators for the steering and control of vehicles