VSIX
| Date | Clue |
|---|---|
| 2017-04-01 | Rather powerful engine |
| 2014-03-16 | Motor with some muscle |
| 2011-10-17 | Engine type pioneered by the Buick Special |
| 2011-01-23 | *It may be under a hood |
| 2011-01-19 | Kind of engine |
| 2006-10-04 | Midsize motor |
| 2004-11-25 | Midsize auto engine |
| 2003-03-18 | Auto engine type |
| 2002-08-05 | Powerful auto engine |
| 1999-02-28 | Motor with some oomph |