No — stops inside steel a36 (reaches 4 mm of a 6 mm barrier)
Penetration depth
4 mm (0.2″)
Impact velocity
380 m/s (1247 fps)
Muzzle energy
845 J (623 ft-lb)
Bullet behaviour
Intact
Fired at the muzzle, a representative 10mm Auto load (11.7 g, FMJ, 380 m/s) reaches roughly 4 mm (0.2 inches) into steel a36. It loses its energy before defeating a typical barrier of this material.
About Steel A36
Mild structural steel plate (~6 mm); car bodies are far thinner (~1 mm).