SILVERSTONE, England (Reuters) - Lewis Hamilton led team mate Valtteri Bottas in a Mercedes one-two in practice for Formula One's 70th Anniversary Grand Prix on Friday as he set his sights on a second home win over successive weekends.
The six-times world champion, chasing a fourth win in a row on Sunday to stretch his 30-point lead over the Finn, lapped with a fastest time of one minute 25.606 seconds using medium tyres on a hot but cloudy afternoon.
