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More than 200 engineers based in Dunton, Essex, have worked on this little engine, and their painstaking development shows. The iron-block, aluminium-cylinder head unit has several innovations, including three tiny pistons with four valves per cylinder, direct fuel injection, a minute turbocharger (from German firm Continental) and a maintenance-free, oil-lubricated camshaft drivebelt. It only weighs 97kg with its ancillaries, and is so tiny that the block is no wider than an A4 sheet of paper.
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