A simple definition of a sports car is a small low car with a high-powered engine, and generally seats two people. This is more or less a textbook definition but gives us an idea of what the public perceives to be a sports car.
The Houghton Mifflin dictionary defines a sports car as: An automobile equipped for racing, especially an aerodynamically shaped one-passenger or two-passenger vehicle having a low center of gravity and steering and suspension designed for precise control at high speeds. This dictionary definition does not seem to capture the general perception of what the public sees as a sports car.
The Houghton Mifflin definition of the two seat rule seems out-of-date. Many sports cars today offer small back seats (sometimes referred to as 2+2 seating) and there is a current movement underway to increase the seating room in models long considered sports cars by most automotive experts.
Insurance companies use their own formula in classifying automobiles and often the presence of two doors automatically makes any car a sports car in their eyes. This perspective, of course, is as overly simplistic as the standard dictionary approach to...