| 2025-02-15 | Tried out |
| 2022-04-16 | Tried-and-true |
| 2022-03-10 | Checked out |
| 2021-02-09 | Like students at semester's end |
| 2019-03-30 | Put into beta |
| 2017-05-16 | Gave an exam |
| 2015-03-15 | Proven |
| 2010-11-14 | Worked on in the lab |
| 2010-01-25 | Took for a trial run |
| 2007-04-02 | Tried out |
| 2005-11-15 | Tried out |
| 2004-10-08 | Checked out |
| 2001-05-26 | Known to be in working order |
| 2000-03-27 | Tried and true |
| 1999-09-05 | Time-___ |
| 1998-12-13 | No longer green |
| 1998-03-04 | Taken around the track |
| 1997-06-15 | Like a Car and Driver car |
| 1996-06-05 | Checked |
| 1995-01-26 | Proven sound |
| 1994-08-06 | Tried by fire |