Machine Works - 4 Cylinder Hybrid EngineMachine Works 4 Cylinder Hybrid Engine The Machine Works 4 Cylinder Hybrid Engine is an educational and engaging build your own kit that simulates the workings of a modern hybrid engine, perfect for car enthusiasts aged 10 and over. This model features over 100 parts and demonstrates three modes of engine operation: internal combustion, eco mode, and electric only mode. The kit includes illuminated components, moving parts, and a multifunction sound
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