Belgian Grand Prix the urban countryside that swept past towns and other obstructions had been cut out and replaced with a new series of corners right before the Les Combes left-hand corner, and the new track rejoined the old on the straight leading up to Blanchimont. The first race at the shortened Spa circuit was won by Frenchman Alain Prost, and the circuit was an immediate hit with drivers, teams and fans. The Belgian Grand Prix returned to Zolder in 1984 and this was the last F1 race held at the Flemish circuit with Italian Michele Alboreto taking victory in a Ferrari. 1985
Detroit Grand Prix (IndyCar) Speedway. AAA also held one five-mile (8 km), non-championship race at Grosse Pointe in 1905. The race dates back to when it was a Formula One World Championship event held on the Detroit street circuit encompassing the Renaissance Center. The original circuit was with seventeen corners and proved to be even slower than Monaco. The rough, demanding course included a railroad track crossing and mimicked Monaco, with a tunnel on the main straight. While officially the "Detroit Grand Prix", it was referred to as the "United States Grand Prix East" because there were multiple Grand Prix races in the U.S.