Historical clue formulations

• Squarish — 2021-05-16
• Squarish — 2019-07-23
• Squarish — 2018-12-21
• Hardly aerodynamic — 2013-01-29
• Far from aerodynamic — 2012-07-29
• Hardly streamlined, as a car — 2009-06-08
• Like the Honda Element — 2008-06-15
• Like many 80's cars — 1999-08-18
• Squared at the edges — 1999-08-16