OPELS
| Date | Clue |
|---|---|
| 2024-12-13 | Cars known as Vauxhalls in the U.K. |
| 2023-04-25 | Some German cars |
| 2019-07-24 | Some German autos |
| 2018-01-29 | German cars with a lightning bolt logo |
| 2017-11-05 | Autobahn autos |
| 2014-01-05 | Some German cars |
| 2012-05-05 | Some German models |
| 2010-02-05 | Astra and Antara |
| 2006-11-28 | Some German autos |
| 2004-10-23 | They're called Vauxhalls in the U.K. |
| 2001-11-02 | Omegas and Vectras |
| 1997-05-02 | European cars |
| 1996-12-16 | Foreign-made General Motors cars |
| 1996-03-18 | European autos |
| 1993-11-25 | Some General Motors cars |