Does a search warrant need to be issued to search a car without a warrant?

On the other hand, if the officers had probable cause to believe the car contained evidence or contraband, they had the right to search without a warrant. Although probable cause alone never justifies a search of a dwelling or other fixed premises, different considerations govern an automobile or other readily movable object. A search of an automobile must meet the test of reasonableness under the Fourth Amendment (Preston v. United States (1964) 376 U.S. 364, 366, 84 S.Ct. 881, 11 L.Ed.2d 777, 780), but what may be an unreasonable search of a house may be reasonable in the case of a car because of its mobility. (Ibid.; People v. Burke (1964) 61 Cal.2d 575, 579, 39 Cal.Rptr. 531, 394 P.2d 67.)