Handguns are not good for stopping cars. They can be good for shooting into cars though. My grandfather was a cop in Milwaukee, Wi in the 1920's and 1930's.
I asked him once when I was a lad about chasing bad guys. His reply was simple, " If I turned on the lights and they sped up, I just stopped and used my 03A3 and put a 30-06 armor piercing thru the rear differential, they stopped pretty quick". He also taught marksmanship for the Army during WWI so he could shoot.
My rifle and pistol are tools, I am the weapon.