Nissan GT-R has a twin-turbo 3.8L V6 engine, model VR38DETT. Each engine is hand-assembled by a single technician – ‘Takumi’ or “master with greatest skill” in a clean room environment at the Nissan Yokohama engine plant. Starting from 2014, each engine bears a nameplate with the name of the engine builder. For a regular mass-production car, an engine is assembled on an assembly line, with different workers installing different parts because it’s faster.