One of the talking points of the Formula One season so far has been the decision by the sport's chiefs to award double points for the final race of the year. 

The idea is to spice up the action by making it more likely the championship battle goes down to the final round. But the idea has been largely lambasted by fans, who see it as an artificially contrived gimmick – and who rightly point out that it would have actually increased Sebastian Vettel’s winning margin last season.

Still, if F1 fans think that’s contrived, they should take a look at the new system just introduced by the NASCAR Sprint Cup. This year, the hugely popular American stock car series will feature a new championship format that guarantees a four-car, winner-takes-all showdown in the final round.