What we've learned on the track

[Hops]

And, just to keep this discussion on track...

On the track, you leave some amount of buffer to avoid hitting the wall. On the street you leave some buffer not to cross the center line or go off the shoulder. I can't even count how many times this has kept me out of trouble over the years. If you lose traction for an instant due to ice, water, oil, gravel, etc., you need a buffer to avoid going into the danger zone. The best way I've heard it put for public roads is:

When turning right, hug the right side of your lane. When turning left, hold the middle of the lane.

The rationale for the middle on the left turn is to give the car coming the other way some extra buffer too. Hopefully that driver is following the rule too (watch the other car's line), and you can then slide a little closer to center.