Pirelli had a conundrum going into Sunday's Qatar Grand Prix. How could they make sure their tyres would last for the 53-race without triggering punctures or forcing drivers to use only one tyre ...

Formula 1 teams can start their annual summer break today. Sometime this month, each of the 10 teams has to close its factory for 14 consecutive days. Laptops stay in the office, email goes unchecked.