Mercedes started the Belgian Grand Prix on the back foot after bringing their latest series of upgrades to the W15. It was intended to bring a step forward in performance for the team, but after running them during practice on Friday they found that it impacted the confidence of both Lewis Hamilton and George Russell. The main upgrades were made to the diffuser and floor of the W15, but while running them in practice the team found that it created the bouncing effect that their drivers have often complained about during this set of regulations. Instead, they chose to revert to the older-spec p…
