Very touchy subject.
From the mid 60s because of bad management, continuous Union problems, lack of investment, shoddy workmanship etc. about the only place that British cars could be sold was Britain.
In Germany British Leyland was referred to as British Eland, Eland in German is 'misery, poverty, distress, wretchedness'.
Lots of British cars bore a sticker "Lucas Lord of darkness"
BMW cancelled a sub-contractor contract with Lucas because they kept missing delivery dates.
Dealers having to waiting up to 3 months for delivery of spare parts.
Because of Union problems Ford's new engine factory that was to be built in Britain was built in Cologne .
I could give you a very loooooong list of other cases, but I won't bore you with the facts.
Just a pity Britain laid on the laurels of the 50's era.
P.S. I'm a Jag, a Mini, and a C5 fanatic, and not a GB hater.