| Clue | Source | Date |
|---|---|---|
| Space saver in a cab | ||
| Hinged convenience for a bus rider | The Washington Post Sunday | 21 Feb 2021 |
| Space saver in a taxi or bus | New York Times | 30 Apr 2017 |
| Space saver in a taxi or bus | ||
| Space-saver on a subway | ||
| Checker cab feature | ||
| 90 Down feature, maybe | ||
| Space saver on a bus | ||
| Limousine accommodation | ||
| Chair of a sort |