Lewis Hamilton cut a dejected figure after qualifying on Saturday as he once again complained about his car’s setup for the Mexico City Grand Prix. The seven-time world champion is approaching his final few races with Mercedes to end one of the most successful partnerships in F1 history. But his time with the Silver Arrows appears to be ending on a sour note with Hamilton not happy with his car in qualifying for the Mexico City Grand Prix. Hamilton ended up sixth on the grid and three-tenths slower than his team-mate George Russell for Sunday’s race. The 39-year-old is running with new upgrade…