Lewis Hamilton is the driver with nothing left to prove, though strangely the one with most to prove. He has seven world titles, his position in the pantheon secured very close to the summit of greatness, and nothing that occurs at Ferrari will alter that fundamental assessment. But there is plenty of work to do if his last hurrah isn’t to turn into a damp squib. If he is to demonstrate that age has not rubbed off the crucial edge that set him apart. And there are elements so amateur at Ferrari that it is almost impossible to believe. They seriously underperformed in Melbourne last week. They point to their form in practice as being more representative of their true pace – and they think that’s an excuse rather than