Valtteri Bottas completed a perfect double for Mercedes on Friday when he headed team-mate Lewis Hamilton in the second free practice for this weekend's Spanish Grand Prix.

The world championship leading Finn, who is one point ahead of the defending five-time champion after the pair's record four successive season-opening one-twos, was half a tenth quicker than the Briton and had been fastest in the morning session. "The car felt really good today, completely different to how it was in winter testing, and it seems like our cornering performance has improved," said Bottas.