Stand alone nav system

If and it's a big if, I lost faith in Google maps, which probably has nothing to do with it not knowing what the actual car speed limit is instead of the truck one,  what are my options.  Probably a dash mount screen, definitely with live traffic and scamera van and fixed sites including average, ai, etc also preferred over air updates.  Selectable voices might be nice too.

I have used quite a few sat navs in my time and have a preference for a built in one, some do have live traffic, the ones I had in the BMWs I had for example.

However, looking at your requirements you will be hard pressed to beat Google Maps, in fact I use it anytime I want live traffic as the in built Jimny sat nav doesn’t have live traffic and neither does my other car, so used Google Maps on my phone this morning to get round Newcastle/Gateshead western bypass, which currently resembles a car park at the moment.

Robin

I prefer to use Waze  than Google Maps, the only advantage for GM is the off-line maps you can download, then you don't need a data signal just GPS. Waze needs a data signal to plot a route, but the live traffic updates are better I think.
I have not looked at stand alone GPS for years now, but I used to have a Garmin that was great

Just got lost in sweden some where from either me or Google maps being stupid. Or me being over 50..drove up and down this little valley for almost an hour while it flipped between 1 hour and 42min to my destination. before closing the app and selecting the camp again and this time only 38min to the destination.
Been using a hiking app for Norway and Gaia GPS for sweden. Google cant quite cope with me only selecting detours or tracks or back roads.
Some use garmin overlander and like it, but it is not plug and play in europe, you need to hack the Maps to get fully detailed.

Been testing DMD2 app, thinking I might buy into it...

That Said, lost in sweden Was sunday, Google got me thru rushour in Oslo on monday like childs play.

Ok so having looked at this more it seems that a garmin is kinda out as they are determined to talk to a smartphone to get live updates to traffic etc. Tomtom is not that much better as they want a subscription after 12 months certainly for scameras and depending on model all live information too. So this leads me to the next stage, is the live information on the tomtom sufficiently superior to Google maps to justify the subscription which by the way they are not particularly open about costings of, seems to be around 35 quid a year possibly? It's just as I am getting old I am finding the intrusive nature of my smartphone to be less and less wholesome, they were supposed to be a tool to help not a toy to distract.