I think, apart from Morgan, the only other British owned car company is the one that makes London Taxis,
Lti.
Rolls Royce (licensed to use name) = BMW
Mini = BMW use the name but current the Mini is a BMW
Bentley (the original RR/Bentley factory) = VW
Jaguar/ Land Rover/ Range Rover = Tata Motors, India
Aston Martin - Owned by multinational investors including Ford
TVR = dead (purchased by kid Russian oligarch and closed)
Lotus = Proton (Malaysian)
In the car world, constant development and progress is required. A 'If it ain't broke don't fix it' mentality is a sure fire recipe for disaster. I see a similar thing happening in some modern US cars. Quality and progress is everything in the world of cars. Fail in either and you have a liability on your hands that may tarnish your image for years, if not terminally.
Simplicity is the ultimate sophistication. – Leonardo da Vinci