Historical clue formulations

• "Deuce and a quarter" automaker — 2021-02-05
• Regal maker — 2019-02-27
• Riviera, e.g. — 2017-04-22
• Regal automaker — 2016-08-10
• LaCrosse carmaker — 2007-11-20
• Riviera, once — 2006-07-08
• Riviera, e.g. — 2005-07-14
• Riviera, e.g. — 2002-01-11
• Century, e.g. — 1998-07-11
• Century or Le Sabre — 1995-11-13
• Skylark maker — 1995-02-07