Lewis Hamilton took what may be his final victory for Mercedes at the British Grand Prix last weekend. He was able to end his two-and-a-half-year drought in dream fashion ahead of his move to Ferrari in 2025. Mercedes have rejoined the fight at the front of the field after making a breakthrough with their concept. But the competitive picture is shifting all the time, so there’s no guarantee that Hamilton returns to the top step before the season is out, particularly with George Russell outperforming him at present. Still, his 83rd victory in Mercedes colours extends his record for the most wit…