 Many experts think this may have been done in order to get the bodywork of the Mercury Cyclone Spoiler II officially homologated at the beginning of the 1969 race season, as the Boss 429 was not yet in production in sufficient numbers to homologate it.A prototype of the Cyclone Spoiler II had exposed headlights where the front nose resembled the one based on the Datsun 240Z.The Mercury Cyclone Spoiler II was very successful on the racing circuit