I have an RDesign D5 XC60 2012 reg. The Sat Nav works and takes me the same route as google maps which is great (my 68 plate XC40 didnt) the problem is the distance and time is all over the place e.g 8 hours 40 min to do a 2 hour 30 min journey. 560 miles for a 192 mile journey. Any ideas on why and what can be done to resolve the problem? Thanks