| Model | Date of manufacture | Power, kWt | Power HP | Volume cc | Type of construction |
|---|---|---|---|---|---|
| FORDA SPECTRON Box 1.6 | 01.1983 - 05.1984 | 52 | 71 | 1586 | Box |
| FORDA SPECTRON Box 1.8 | 05.1984 - 12.1989 | 59 | 80 | 1789 | Box |
| FORDA SPECTRON Box 2.0 | 03.1986 - 04.1990 | 63 | 86 | 1998 | Box |
| FORDA SPECTRON Box 2.0 4x4 | 03.1986 - 04.1990 | 63 | 86 | 1998 | Box |