He’s a lovely man, but I find it so hard to be in the car with him.
Mine isn’t very practical. I do generally offer to drive but it often ends up being him.
The problem is he is so erratic. He slows right down, well below the speed limit, and then suddenly speeds right up.
In traffic jams he just sits there so a vast space appears between him and the car in front. If i suggest he goes forwards he says ‘but what’s the point?’ I’ve pointed out it creates a massive backlog of traffic, people unable to get out of junctions or turn into side streets.
He drives 60 in the fast lane 
He doesn’t listen to directions properly. So I’ll say ‘okay, turn left at the roundabout.’ He then drives straight on and I’ll say ‘dp!’ He SLAMMED ON THE BRAKES sending me FLYING forwards! Who does that!?
It’s more a rant than anything ...