Its down to proper driving skill in WRC. I can't believe for 1 second that Button would be a better driver than Loeb. Down to real driving skill to win the WRC whereas F1 is all about the best car, as proved in Button's constant failure to win an F1 race due to the Renault's being constantly quicker than him.
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View Poll Results: What's your favourite form of Motor Sport?F11244.44%WRC (Rally)933.33%NASCAR00%Drag Racing00%Moto GP (Motorcyle)00%Le Mans (Endurance)13.70%Go-Kart00%Touring Cars518.52%