Sunday’s 78-lap cruise through the Monaco streets was hamstrung by a heavy first-lap crash involving Sergio Perez and Haas drivers Kevin Magnussen and Nico Hulkenberg.Under the resulting red flag, all drivers were allowed to change tyres, negating the need for mandatory pitstops later on.The rule stops disadvantaging drivers who are yet to pit right before a mid-race red flag, but having a lap-one …Keep reading