Although some may consider it a smugmobile, Mercedes's diminutive SmartCar has gained a worldwide following and a market. The European version has a nifty three-cylinder diesel with impressive fuel specifics that a company called FlyEco has adapted for aircraft use. The engine has all the usual suspects -- high-pressure common-rail injection, turbocharging, and liquid and oil cooling. In this excluse AVweb video from the Aero show in Friedrichshafen, Germany, FlyEco's Arnim Wegener gave us a detailed rundown on the FlyEco 450 three-banger.
This is a companion discussion topic for the original entry at https://www.avweb.com/multimedia/votw/video-smart-car-goes-flying-flyecos-three-cylinder-diesel