Yes it's hard to know fully. A lot of the problems seem to have been caused by the communist unions & the wharfies who were building the cars.
The shipment of launch Triumph TR7 cars to USA were sabotaged - even some of the engines came off the line with no pistons!
Cheapening parts just to save a few pence really killed off some of their cars such as the Stag with its cheap head gasket and unusual head bolt locations.
Then there was Alec Issigonis, he was an incredibly difficult person to deal with especially if someone queried his design.
Now it is only Jaguar and Land Rover and even these are far removed from their heritage now albeit owned by TATA India.
