Built for Speed is a term used to describe vehicles that are designed to be fast and efficient. STREAMLINED (11 letters) refers to the shape of the vehicle, which is designed to reduce drag and increase speed. Aero (4 letters) is short for aerodynamic, which is the study of how air flows around an object. RACER (5 letters) is a type of vehicle that is designed for racing and has a high performance engine. SLEEK (5 letters) is a term used to describe a vehicle that is smooth and stylish. All of these terms together describe a vehicle that is built for speed.