Da Costa had only just cleared Jake Dennis from the top of the FP2 times, the 2019-20 champion logging a 1m07.993s to go quickest at the chequered flag, but Vergne put his car on top even later into the session to hammer home a clear Techeetah advantage.
As the mercury pushed 32 degrees C in time for FP2, the drivers had to intersperse their laps with tentative cooldown tours to ensure the tyres were not too punished by the escalating track temperatures.
