Historical clue formulations

• French auto pioneer Louis — 2021-12-12
• French automaker — 2020-08-16
• Citroën competitor — 2017-09-10
• Clio maker — 2010-07-03
• Clio maker — 2009-01-23
• One of three French auto-making brothers — 2008-05-31
• Automaker Louis — 2003-02-23
• Competitor of 22-Across — 2000-08-24