Hide behind the engine block or wheels..... ........ IIRC one of the reasons the .357 became popular in the 1930s with Highway Patrols and State Troopers was its ability to penetrate automobiles.

As a Motorcycle officer in 1938 my Dad opted for a 6" Colt New Service in .357 for his duty gun.......by the late 60s as a Captain he mostly carried a two or four inch .38 with "Police Only" +P .38 SWCHP ammo. But that old Colt was in his desk drawer loaded with IIRC .357 158 grain soft points.