Which is the most-improved team of F1 2018 so far? Up the front, there's most certainly a strong case that it's championship leaders Ferrari. Then at the head of the midfield there's Renault and Haas, both of whom have already scored more points this season than they managed last. McLaren, despite falling well short of their own expectations, fall into that category too. But what about the other team whose points haul for 2018 already exceeds 2017 - Sauber? In fact, the unfancied Swiss team's return of 16 points after 10 races is their best for three years. Had it not been for a pit-stop blunder at Charles Leclerc's pit stop when running in the points at last week's British GP, the team...
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