It is not unusual for performance car manufacturers to build track-only vehicles alongside their ‘regular’ road cars. These track-only monsters, free of any regulations, are typically extreme in nature, going all out with engine power, aerodynamics and weight savings. They also serve as a test-bed for technologies that may eventually find their way into road cars.
As the name implies, driving track-only vehicles on public roads is illegal. Some owners, however, have found a creative way to get around this. They convert their track monsters to tamer beasts that can be driven in public without attracting the wrath of the law.