One driver may be in touch with Mercedes team principal Toto Wolff over the vacant seat with the Silver Arrows. Lewis Hamilton is leaving the Brackley outfit at the end of the year to join Ferrari for 2025. And speaking on the Autosport podcast, journalist Filip Cleeren has suggested a possible successor. George Russell is locked in until the end of next year but Wolff needs to fill the shoes of F1’s most successful driver in Hamilton. The Briton has won six of his seven world championships with the team, having joined from McLaren in 2013. More than half of the grid are in the final year of t…