In 1984, Lotus derived a 4-liter, 32-valve V8 engine from the LV-240 racing engine. Called the Type 909, it was the theoretical powerplant slapped into the Esprit-chassis-based, Giugiaro-penned Lotus Etna concept. The concept-powered-by-a-concept-engine's theoretical top speed? 182 MPH. [via OMGITFS]