Sauber say errors must be ironed out

Sauber needs to iron out the small errors it has made on grand prix weekends if it is going to realise the full potential of its car over the remainder of the season. That is the view of its drivers Kamui Kobayashi and Sergio Perez, who both believe that the outfit can deliver a lot more in the second half of the campaign than it did in the first.

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