Owners of older Jaguar XFs pay up to £316 for sat nav updates, while those for Ford cars vary from £81.90 to £159, depending on model and age, the research found, with those driving earlier editions paying most.
Subaru vehicles operating on an old system face an update cost of £300, while the charge for newer Subarus with SD-card sat navs is £100 after the three free updates run out. - via