A supercar – also called exotic car – is a loosely defined description of street-legal, high-performance luxury sports car. Since the 2000s or 2010s, the term hypercar has come into use for the highest performing supercars. Supercars commonly serve as the flagship model within a vehicle manufacturer's lineup of sports cars. Most modern supercars are capable of achieving higher speeds than regular sports cars; many of which can exceed 300 km/h (186.4 mph), roughly equivalent to the highest average speed of Formula One cars.