Much is made of the .50-caliber bullet’s ability to stop a vehicle when fired into a car’s engine block. That depends, of course, on hitting the engine block. Unlike the video above, most engine blocks are situated inside automobiles. Which are known for their ability to move fairly quickly. Not to mention the fact that cars/trucks generate a great deal of momentum. If the targeted a vehicle contains an explosive device, you have to shoot the engine block and be far enough way not to die when the bomb wagon goes boom. Better to shoot the driver. Sure, if you have the time, throw some random shots at the engine, gas tanks, etc. But shooting the brain of any system is always effective.