Fernando Alonso may have committed this future to Aston Martin beyond 2024, but the Formula 1 driver’s market is only just getting started. Carlos Sainz is now the most likely candidate to set off a chain reaction of movements after losing his seat at Ferrari. He’s patiently waiting to see what Red Bull do with Mercedes still hoping to sign Max Verstappen and Sergio Perez out of contract at the end of the year. The imminent arrival of Audi is also creating some speculation among the bottom half of the grid with plenty of drivers wondering if the German manufacturer are going to be Formula 1’s …