Carlos Sainz’s retirement from the 2015 British Grand Prix was not related to the Renault Power Unit according to Toro Rosso, who ruled that it was an issue to do with the teams electronics that caused him to stop with 21 laps of the race still to go.
The stoppage brought the Virtual Safety Car out, which neutralised the field during a crucial stage when the rain made its way over to the circuit.
Carlos Sainz said after the race to Autosport that he wants answers to Toro Rosso’s pace with 100kg of fuel at the start of the race. According to the Spaniard the car suffers from balance issues for the first half of the race, but by the time 20kg of fuel is shed it starts to come back to the car we’ve seen in Practice, which some have claimed is the third best chassis aero-wise on the grid.
Toro Rosso had to face a double retirement on Sunday, after Max Verstappen dropped his STR10 heading through the high speed switch of turns one and two on cold tyres, spinning off the circuit and into the barriers just a couple of laps into the race.