Most of the cars these guys drive are leased, some through the club and some privately. There are a couple of brokers out there in Internet land that specifically deal with footballers,and arrange insurance as well(as footballers, along with musicians and others have higher premiums due to the levels of personal cover often required), and perhaps they crash more often as well(but that's pure speculation on my behalf)
Fair enough but if he's in a position to be able to just lease a Porsche I still think he's paid too much. I'm guessing such arrangements are not cheap.