The German car industry argument doesn't put us in a strong position, because if there are tariffs on cars, and their components, it effects us far more because of the EU base of the supply lines.
There will be a deal, but its naive to think that because we import a lot of German cars that it puts us in a strong position. Why? Because even with a tariff we'd probably import a very similar amount, because there are no close substitutes, and tariffs would increase the cost of production of the UK made cars anyway.
"But one of the main complaints about the leave campaign was that there was no plan and no-one knew what was going to happen"
No, the "better than membership deal" is what the leave campaign told people they could have when others said that it would mean leaving the single market, if we wanted to negotiate our own trade deals etc. We got: " No that won't happen, scaremongering". Or they gave the German car industry/Prosecco argument. If this was the plan its accurate and fair to critique it because its fantasy.
As I've said the EU will be willing to compromise on a deal, the UK is important to it, however I feel that the way leavers paint this is all or nothing.
Actually thinking about it, the way leavers paint it is like its war, like the aim is to defeat your opponent. Maybe that's the issue with leavers overall, you never got over the war, EU is always an enemy to made to follow our will, or dictating to us.