Round-up: McLaren “added more stress” unnecessarily with team orders says Piastri, and more

Happy birthday!

Happy birthday to Steve_P83, Mister Nillionaire and Roodda!

On this day in motorsport

• 40 years ago today Ayrton Senna was quickest on the first day of testing for the new season at Jacarepagua in Rio de Janeiro, setting a best time of 1’32.44 in his Lotus-Renault 98T
• 40 years ago today Williams launched its new FW11, which was driven by Nigel Mansell and Nelson Piquet, and won the constructors’ championship