Champions Mercedes plan to use the last two races of the Formula One season to test new ideas and parts for 2018 now that they have won both titles. The British-based team said in a preview for Sunday's Brazilian Grand Prix that, with nothing at stake, they could afford to become "a little bolder" and experiment in Friday practice. The experiments could also be carried over into the race for newly-crowned four times world champion Lewis Hamilton and teammate Valtteri Bottas. "These two final weekends are not only an opportunity to test new parts, but also allow experiments for those tasks that the team simply doesn't have the opportunity to complete during a normal race...
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