The police need vehicles capable of 4x4 in rural communities and rough dirt roads. This is to access the entire comunity but also give better success in chasing the drunk dodge ram driver into the corn field. The police also sometimes have things like trailers for crime scene investigation or boats for water based policing, they need a vehicle capable of towing those.

They also use some unmarked trucks for traffic control as they blend in better allowing them to do radar more effectively.