Well, after Googling, and doing as much research as I can, reading manuals from cover to cover, there seems to be no way at all to force my new car’s sat nav system to use miles. I’m being forced to use metric distance measures even though the main computer knows that I want to use imperial measurements.
It’s not as if the sat-nav system was originally designed for SAAB. It was developed for the new Cadillac (which is in turn based upon the SAAB 9-3) and “back-ported” to the 9-3 so you would have thought that the default measurement system would be Imperial, for the American market. Indeed, there is one place in the manual where the global search and replace missed a reference to “the Cadillac navigation system.”
Oh well. It seems that I’m going to have to judge distance the continental way and mentally replace “metres” with “yards” when the digitised woman gives distances to the junctions.