I got stopped on M58 in my Audi Avant one morning at 5.00 am in dark by a Lancs Motorway cruiser. Pulled me over, asked my speed ..over 100 i said, ohh said white hat we got you at 98. He said nice brand new car , how fast does it go ? I said had 120 out of it. Then he said I was not driving dangerously etc. let me off for telling truth and then told me to look in my rear view mirror more often ...happy days.....centralheatking