Did the Maestro & Montego Seal Austin Rover's fate?

The Maestro was the car that killed Austin Rover. Poised on a knife-edge in the early 80’s between survival and disaster, this car, and its booted Montego sister, caused its death. Not right away – plenty of Government subsidies and deals with Honda and BMW gave the company another 20 years, but this was the critical moment when it all went wrong. When the company lost its ability to chart its own destiny. So why were these cars such poor-sellers, and why did a company that made the critically successful Metro, get it all wrong with its follow-up?