Also importantly, 2006 saw the debut of a 'modern' category, with the sole entry of a Lotus Elise ('Chica Loca') run by Rachel Larratt. This class, called Unlimited, allows machines manufactured after 1990 to compete in the race. Controversially, in recognition of the high value of some of the supercars thus allowed to run, organisers of the race foresee the need to allow case-by-case exceptions from the race's normal safety equipment rules. The class is intended to raise the race's profile beyond a market elderly enough to recall the original four races, to ensure the survival of the event. Also, it is a reflection of the increasing scarcity of eligible vehicles, and of the effect of modern rallies like the Gumball 3000.