The Sao Paulo Grand Prix was a weekend to forget for Lewis Hamilton and Mercedes after they only just managed to score points following a tough afternoon for the seven-time world champion. Hamilton was among the drivers that were most vocal about the bumps around the newly resurfaced Intelagos circuit, which appeared to be affecting the balance and handling more for Mercedes and Aston Martin. Karun Chandhok thinks F1 should ‘ask for its money back’ after the resurfacing job at Intelagos appeared to produce more bumps than the previous year. After finishing in P10, Hamilton branded his weekend …