sentences:  Each of the three models has an air-cooled rear engine and share similar aerodynamic fastback four-door sedan bodies.But whereas types 77 and 87 each have a large V8 engine, Type 97 has a flat-four engine.The Type 97 is distinguished by having two headlights and a one-piece windscreen, whereas the 77 and 87 have three headlights and a three-piece windscreen.