Steve, the effect of which you speak is achieved by using an aperture to create a very shallow depth of field that blurs background. Very fast lenses allow the user to select apertures in the range of f/1.2 or f/1.4 that give extremely shallow d-o-f. By doing so the background is basically out of focus and sometimes will appear completely black. (The system has prevented me from posting a photograph that would exemplify an elimination of the background). No lectures please, the system screwed up twice.

I can bake if I need to or want to. Very tasty bread when it is desired! It's called the vanishing point and/or leaving the idiots in a cloud of dust. Something that you clearly don't comprehend.

When you actually have a fast vehicle you get used to the idiots with a basic vehicle with a spoiler on the back and a paint job on it trying to play silly buggers with you. People that actually have fast vehicles and can drive them recognize the others, they don't need to play games. Especially when it comes to twisty roads and going around corners.

Those that own fast vehicles and know how to drive them safely very seldom play games, since the consequences can be severe. There is a time and a place for everything, and public roads are not the place. I've met very few drivers that can drive safely at over 100 mph, let alone 140mph.

I observe the incompetent drivers every day.

Don't mess with it unless you know what you are doing, and not on public roads.