Toro Rosso changes Kvyat engine

Toro Rosso changed the engine on Daniil Kvyat's STR15 between the two practice sessions at the Chinese GP. The Japanese engine manufacturer identified an anomaly in the Power Unit and preferred to change the entire block due to lack of time.

The Russian, who set the 8th fastest time in EL1, was able to cover around twenty laps in EL2.