Why don't drivers enter other series like Verstappen? F1 Q&A

BBC Sport F1 correspondent Andrew Benson answers reader questions ahead of the Canadian Grand Prix, the fifth round of the 2026 Formula 1 season. The Q&A addresses why more F1 drivers don't compete in other racing series, prompted by Max Verstappen's participation in the Nürburgring 24 Hours, where his Mercedes entry was leading with three hours and 20 minutes remaining before a broken driveshaft ended their run. George Russell, the defending Canadian GP winner, heads to Montreal looking to close a 20-point gap to championship leader and teammate Kimi Antonelli.