The Rover, MG Rover, Austin and whatever other brand the Metro was sold under, was a forgettable mini that wasn't taken very seriously, even by the company that made it. This may explain this late 1980s-early 1990s advertisement spoofing the 1966 Adam West-era Batman and Robin TV series.
The ad ends with the message, "When you got to.... pick up a penguin, Metro gets you going." Holy priceless collection of Etruscan snoods.... Enjoy the video after the break.