Paid software updates you say? I have a 2014 Opel Ampera and noticed the maps on the nav system are pretty out of date. So on a whim, I googled how to update them. Apparently you have to get a DVD coded to only work in your particular vehicle, and it cost over 200 pounds!

Given how clumsy the nav is to use in the first place - you have to use an abcdef touchscreen keyboard for input! - I decided it wasn't for me.