Carlos Sainz, a director of the Grand Prix Drivers’ Association, added his voice to criticism over a software issue which affected much of the grid. Formula One has been urged to take a “hard look” at the regulations following the unprecedented software glitches which overshadowed Sunday’s Bahrain Grand Prix in Malaysia. Key points and original sources are listed below.

• Carlos Sainz, a director of the Grand Prix Drivers’ Association, added his voice to criticism over a software issue which affected much of the grid.S1

• Formula One has been urged to take a “hard look” at the regulations following the unprecedented software glitches which overshadowed Sunday’s Bahrain Grand Prix in Malaysia. This season’s new engines – which rely on 50-50 split between combustion and battery p...S2