Monsanto Park Circuit

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The Circuit De Monsanto, or Monsanto park circuit, was a 5.440 km (3.380- mi) race track near Lisbon, Portugal which hosted the Portuguese Grand Prix. Built on parklands, the circuit was considered difficult to drive because it crossed so many different types of surfaces, including tramlines at one point. The track hosted numerous races from 1954 to 1959, but only one race qualified as a Formula One event: the 1959 Portuguese Grand Prix, won by Stirling Moss. He won the race in the twilight hours, since the race was purposefully started late in the day to avoid the intense late summer sun.