If I key in Cheltenham to Guildford on the Sat Nav quick route 1 gives me 136 miles, 2 hours 12 minutes. Quick route 2 gives me 161 miles, 2 hours 18 minutes and the short route gives me 136 miles, 2 hours 12 minutes.
The true mileage according to Tom Tom is 105 miles, 2 hours 11 minutes.
What I have noticed is that it always picks up motorways and I get the impression it is avoiding A and B roads.
this has happened on many routes.
Has anyone any idea what I am doing wrong or are you having similar problems.