Lewis Hamilton says he hasn't been driving 100 per cent on the limit since he secured a fourth world championship earlier in the season. The Briton grabbed a fourth title at the Mexican Grand Prix with a ninth-place finish, which was all he needed to beat Sebastian Vettel, but in the final two races he's missed out on pole position and the wins, finishing fourth in Brazil and second in Abu Dhabi. Hamilton, who has never won a race after a title win in the same season, admitted it wasn't easy to remain on the same level when the target has been achieved. 'I have tried my hardest to stay on it but I wouldn't say it was 100 per cent of what it was while in...
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