| Identity | Distance | Time | Journeys | First Journey | Last Journey |
|---|---|---|---|---|---|
| 121027 | 5mi 02ch | None | 1 | 13 Jan 1995 Bletchley to Aspley Guise | 13 Jan 1995 Bletchley to Aspley Guise |
| 121031 | 21mi 53ch | None | 2 | 01 Aug 1994 Bletchley to Bedford | 13 Jan 1995 Aspley Guise to Bletchley |
| 121032 | 6mi 34ch | 27m | 6 | 28 Jan 2010 Cardiff Queen Street to Cardiff Bay | 26 Mar 2012 Cardiff Bay to Cardiff Queen Street |
| 121034 | 7mi 17ch | 16m | 1 | 18 Apr 2017 Princes Risborough to Aylesbury | 18 Apr 2017 Princes Risborough to Aylesbury |
Total time displayed is accrued against the whole journey and may not reflect time from actual vehicle if detailed traction is in use.