Youy can upload POIs but this wouldn't be very useful to show the current limit. The best you could do is upload the location of the speed limit signs, but their number would be too great.


Re link to Sat Nav, I've just noticed:

owner's guide wrote:

The system may provide false information
or function incorrectly in the following
conditions:
• Travelling in adverse weather
conditions. For example, heavy fog,
rain, snow, etc.
• Concealed or covered signage.
• Driving towards very bright lights/
lamps.
• The windscreen area in front of the
camera is covered by a sticker, misted
over, dirty, covered in snow or mud,
etc.
• Navigation information is incorrect.
• Travelling in an area not covered by
the Navigation system