| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Mercedes-Benz OM621 engine - Models |  |  |  |  |
| 3 | Engine | Displacement | Power | Torque | Years |
| 4 | OM621 I | 1.9 L (1,897 cc) | 37 kW (50 hp) @ 4,000 rpm | 108 N⋅m (80 lb⋅ft) @ 2,200 rpm | 1958–1959 |
| 5 | OM621 IV | 2.0 L (1,988 cc) | 35 kW (47 hp) @ 3,800 rpm | 108 N⋅m (80 lb⋅ft) @ 2,200 rpm | 1961–1962 |
| 6 | OM621 III / VIII | 2.0 L (1,988 cc) | 40 kW (54 hp) @ 4,200 rpm | 118 N⋅m (87 lb⋅ft) @ 2,400 rpm | 1961–1968 |
| 7 | OM621 III / VIII | 2.2 L (2,197 cc) | 40 kW (54 hp) @ 3,000 rpm | 118 N⋅m (87 lb⋅ft) @ 2,400 rpm | 1966–1988 |

Question: What displacement version of the OM621 III / VIII engine began being used in 1966, and what year did it stop being used?
Answer: A 2.2 L (2,197 cc) version of the OM621 engine was used until 1988.