Depth perception

I am having a really hard time when trying to estimate the space between mine and other cars, both in front and to the sides. What looks like I am sniffing the bumper when in cockpit can be in external view on replay be more than a cars length away, quite so when cars come up along side.
Yesterday Martin came up along side the long and reasonably straight, and when I looked right to see where he was I felt that if the seat had been in the wrong side of the car we could have shook hands. On...

Depth perception