Actually duck it was several seasoned officers doing the testing. NONE of these pointed so called engine killers actually worked. You can shoot a carburetor, or now a days an injection system (in some areas of the system) and shut the engine down by stopping the fuel flow but, but you don't need an AP round for that, and it ain't gonna penetrate the block. But then again we later tried the 44 magnum with the same results. The best you can hope to do is deflate the tires, or damage the radiator which will eventually work, but so will # 4 buck from a shot gun, which is what I would choose to stop a car in close.
Back in the old days, in this part of Texas if you ran from the Police, and you started endangering folks, we shot at your car, and if it got rough enough at YOU. I personally have stopped cars with firearms, but knowing what I had PROVED about engine blocks and bullets, the engine was never a consideration. I went for the tires, occasionally up close, for the radiator, and a couple times for the driver, but I was going for a meat shot by that time.
I once had some officers work out pretty good on a 77 Ford F-150 4X4 with twelve gauge magnum slugs, but didn't stop the pickup. The ones that went into the engine compartment were just as ineffective as the 357 mags, or the 44mags. We eventually ran him into a wooded area pushin him and not lettin him get out of the veh and run. A tree stopped the truck.
Until the assault weapons thing got popular, I and several others, along with all of the Texas Highway Patrol carried either Winchester, or Marlin 3030s in the units, and the Troopers 3030s were State Issued. Now those will get the guy in or behind the car's attention, and will many times zip right thru, but they were no better on cast iron engine blocks.
As far as other TESTING, no. I have used the 357 mag 125 grain JHP, the 45acp in 230 grain ball, and 200 grain HP, and the 12 gauge on actually incidents involving cars, and the 158 grain, and I believe 140 grain APs in the testing.
Your just not gonna kill a car with a pistol or revolver round unless its pure luck. You can cripple the car and it may eventually die.