most of the car crime occurs due to leaving items on display, CCTV will not stop thefts from vehicles happening due to the evidential quality and being able to identify suspects. ignoring this even if a suspect has been arrested the items stolen and damage caused will probably not be recovered. A few tips
remove satnav windscreen marks
dont leave anything in display( inc any chargers)
lock car doors( obvious but you would be suprised how many people forget)
do not leave car keys in view, put them away,a regular reason why houses get burgled.
all the best steve