Mercedes investigating George Russell's British GP top speed issue

Mercedes team principal Toto Wolff has confirmed the team is investigating a top speed issue that affected George Russell during the British Grand Prix at Silverstone. Russell qualified almost four tenths slower than teammate Kimi Antonelli, losing most of that time on the Hangar Straight where Antonelli averaged around 6km/h faster in a straight line. Wolff stated there was no apparent difference on a power unit level, requiring a deeper investigation to understand the cause.