Synonyms for Cruiser (same or very similar meaning)
WordNet sense 1 (a car in which policemen cruise the streets; equipped with radiotelephonic communications to headquarters):
patrol car, police car, police cruiser, prowl car, squad carWordNet sense 2 (a large motorboat that has a cabin and plumbing and other conveniences necessary for living on board):
cabin cruiser, pleasure boat, pleasure craftFrom the ODE community, based on WordNetadd/edit