| Present Location | Midland Railway Centre |
| County Location | Derbyshire |
| Designed For | BR |
| Build Location | Derby |
| Built by | BR |
| Diagram number | 516 |
| Lot number | 30209 |
| Type | DMBS |
| First Number | 50015 |
| Later Numbers | 53015 55929 DB977775 E50015 |
| Present Number | E50015 |
| Current Livery | BR Rail Blue |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Class 114. With 56015 P 03/04 ex storage at Thornaby TMD. Former ATP test unit - modified for the purpose (including kitchen and air conditioned lounge). 09/21: confirmed still at Midland Railway Centre (Butterley). |
| Owner | MRT Railcar Group |
| External Structural Condition | Good |
| Internal Structural Condition | Fair |
| Underframe Condition | Good |
| External Finish | Fair |
| Internal Finish | Fair |
| Degree of External Originality | Much replaced/reproduced material |
| Degree of Internal Originality | Much replaced/reproduced material |
| Degree of Underframe/Running Gear Originality | Some replaced/reproduced material |
| Degree of External Authenticity | Fair |
| Degree of Internal Authenticity | Poor |
| Degree of Underframe Authenticity | Good |
| Rarity | Few |
| Historical Importance | Some Importance |
| Storage | Secure Open |
| Operating | No |
| Survey Date | 29/05/2007 |
| Surveyor | Evan Green-Hughes |
| Photo Date | 19/03/2017 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 12/12/2021 |
