The Germans are not happy about rules on Diesel as they have a big percentage of Diesel cars, partly because they don’t tax Diesel as much as petrol. This reduces CO2 and has helped the sale of Diesels including from JLR.
But the regulations force people to go for electric cars and develop cleaner Diesel engines. Robert Bosch think they have the technology to solve the Diesel problem, which, if true, will boost the industry as people go for the new engines in the future.
I don’t know where Tim Congdon has been wrong before, but I would be surprised if he, or anyone, has been 100% right. I don’t doubt that he knows what he is talking about, but there are many factors in leaving the EU and it is hard for anyone to know where we will land.