Hamilton has endured a difficult 18 months, particularly in qualifying. The Independent crunches the lap times

A former Formula 1 team owner has accused Ferrari of breaking promises after Lewis Hamilton showed his disappointment following the Hungarian Grand Prix.

Lewis Hamilton called himself ‘useless’ and told Ferrari to change their driver, and even with 24 hours to cool off, he refused to backtrack on his harsh self-assessment. His increasingly beleaguered interviews have been spotted by Giancarlo Minardi, the founder of the F1 team of the same name.