Thirty years ago I had a tyre blow-out on the southbound M11 carriageway about
a mile before the M25 junction. It was interesting but not entertaining. At
that point the southbound carriageway is downhill for about a mile, which of
course did not help me to slow down. I didn't dare touch my brakes so I
changed gears and drifted downhill. I thought I was going to get away with it
but when I was down to about 20 mph the car spun round and crashed into
the central reservation.