Carlos Sainz is inching ever closer to picking his next destination in Formula 1. Sainz has been at the centre of the driver market since the winter, when Ferrari announced they were replacing him with Lewis Hamilton. Inevitably, the Spaniard has tried to remain at the front of the F1 grid. With the doors to former team McLaren closed, Red Bull and Mercedes offered the only chance of doing so. The world champions may have a vacancy for next year if Sergio Perez doesn’t do enough to earn a new contract. But ‘the word is’ that they don’t particularly want Sainz either way. That’s partly because …