In dayz 1.19 there are already a outside police car model (both ada and olga) and the normal inside from the already existing vehicles. Would be really great to see both combined in two new variations of the cars, that only spawn at police stations across their respective map. It would bring tons of dynamism into game and reinforce a key element to dayz, imersion.
Also adding the in-work van (ambulance model) would be nice (both as a car and a car crash, or even in the dynamic car situations).