What is a line of compact cars produced by Prince Motor Company in 1980 and discontinued in 1999?
Nissan Leopard:  The Leopard began life in 1980 and was discontinued in 1999. Nissan Skyline: The Nissan Skyline (Japanese: 日産・スカイライン "Nissan Sukairain") is a line of compact cars, sports cars and compact executive cars originally produced by the Prince Motor Company starting in 1957, and then by Nissan after the two companies merged in 1966.
Nissan Skyline