Working Model - Haynes Porche Boxer Flat 6 EngineNow you can build a fully functional 1: 4 model of an all time classic motor the flat six engine from the Porsche 911. This detailed replica features more than 280 components found in the real thing, and transparent casing so the moving parts can be seen when switched on. It also features engine sounds. This is a great introduction for kids to the inner workings of such an iconic car engine and great building set for the hobby and car enthusiasts.