I learned a lot from a former DEA agent that I did security work for many years ago. He always advocated leaving room around you when you were stopped. He said that you can always use your vehicle as a weapon if you have room. Crunching a perp between your vehicle and the one near you would work very well.
I always drove this way when I was in Detroit. The number one traffic rule was always leave enough room to drive away easily.
I moved north to a rural area and now the number one traffic rule is always watch out and slow down for Mennonite/Amish horse and buggy traffic.
I'm serious.