Tyre evaluation and set-up work for Hamilton

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F1 Test, Barcelona, Circuit de Catalunyaes

Lewis took over from Jenson today, continuing the development work his team-mate began yesterday: refining set-up and evaluating tyres. The morning was spent conducting shorter runs, attempting more experimental set-ups – changes that Lewis found beneficial to the car’s balance.

The different set-up changes caused several lengthy turnarounds in the morning before Lewis could concentrate on a single long-distance run in the afternoon – which was punctuated by several late red-flag periods. Jenson is back in the car tomorrow, conducting further fine-tuning of MP4-25.

Laps run today: 93
Laps run in total at test: 903 (470/433)
Kilometres covered today: 433
Kilometres covered in total at test: 194 (101/93)
Best lap time today: 1m22.152s at 12:49
Best lap time of the test: 1m22.152s

Source: McLaren Mercedes F1