Road America: Mark Blundell, PacWest Racing Group, Reynard 98i Mercedes, leads Max Papis, Arciero-Wells Racing, Reynard 98i Toyota, and Adrián Fernández, Patrick Racing, Reynard 98i Ford.
Mark Blundell, PacWest Racing Group, Reynard 98i Mercedes, leads Max Papis, Arciero-Wells Racing, Reynard 98i Toyota, and Adrián Fernández, Patrick Racing, Reynard 98i Ford.