Lightweight K-car Cup is a race series in Gran Turismo 2 that is exclusive for K-cars, better known as "kei jidosha" in Japan, which is a Japanese term for small cars with 660cc engine and a (government-limited) 63hp. In real-life, kei jidosha cars feature the same options as their larger counterparts, despite being smaller in size. Kei jidosha cars also frequently come with a turbocharger/supercharger (turbocharger+intercooler is more frequently used because it uses less space and weighs less than a supercharger)