Boutique car manufacturer Isotta Fraschini has pulled out of the World Endurance Championship with immediate effect, leaving a depleted Hypercar class for this month’s sixth round in Austin.
Disagreement with the Duqueine Team, which was responsible for running a single Tipo 6-Competizione, is understood to be the key reason behind the Italian marque's sudden decision to withdraw from the remainder of the eight-round season.
