| (subclass IntermittentCombustionEngine InternalCombustionEngine) | Cars.kif 91-91 | |
| (subclass FourStrokeEngine IntermittentCombustionEngine) | Cars.kif 96-96 | |
| (subclass TwoStrokeEngine IntermittentCombustionEngine) | Cars.kif 240-240 | |
| (subclass TwoCylinderEngine IntermittentCombustionEngine) | Cars.kif 4540-4540 | |
| (subclass FourCylinderEngine IntermittentCombustionEngine) | Cars.kif 4548-4548 | |
| (subclass SixCylinderEngine IntermittentCombustionEngine) | Cars.kif 4556-4556 | |
| (subclass EightCylinderEngine IntermittentCombustionEngine) | Cars.kif 4564-4564 | |
| (subclass MiniCooperEngine IntermittentCombustionEngine) | Cars.kif 4857-4857 | |
| (subclass ChevroletEngine IntermittentCombustionEngine) | Cars.kif 4969-4969 | |
| (subclass CosworthEngine IntermittentCombustionEngine) | Cars.kif 5164-5164 |
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