What do you mean by best? In terms of raw speed it has ebbed and flowed all year between, IMHO, McLaren and RBR but RBR edges it as McLaren's Achilles heel is the rain/inters Alonso has picked up the pieces with consistency to top WDC, not to mention Ferrari is an all round car that suits different conditions. I can't see how you can say MGP is best car. Still has a problem from last year eating up its tyres. On a single lap they can give the top 3 teams a hard time but for race? Forget it unless its really cool conditions as in China & Monaco.