Ultimate Caravan Satnav

Forgive me if I'm stating the blindingly obvious - but as far as I can see, no one has mentioned this on here before.  I have just bought my wife a satnav for her new car and because she doesn't do computers or anything technical, I got a high-end Tomtom - the 6200, mainly so that I could manage it for her.  It comes with Wifi connectability, lifetime map and speed camera updates, but most importantly - works with the "MyDrive" app. (There are also other models with this facility).  I realised that this would be ideal for planning caravan-friendly routes because it allows you to plan the route on your computer - picking the best route and avoiding caravan 'nightmares' (in conjunction with research on Google maps Street view) and then downloading it to the Tomtom device via Wifi so that it's all ready for you to set off.  I've only tested a couple of routes so far but it seems to work brilliantly and gives me the confidence that it's not going to send me somewhere daft with the van on the back. I accept that all of this does take time and it's a long way from just inputting a postcode, but for those of us who do have the time, or are faced with a potentially difficult route, it seems ideal and far better than all the others I have tried including the Caravan Club one - and that in my car - hence the additional lead so that I can 'borrow' it from time to time!