As for his split allegiances, Lauda told Corriere dello Sport newspaper: "It's ok for me.
"But in Singapore maybe Vettel will change things again," the great Austrian said.
"Ferrari will be the favourite in Singapore," Lauda declared, "but on the other hand it is difficult to say who will win. I hope it is Hamilton."
But if it is Vettel on top, Lauda admits that his 'heart' still beats for the Maranello team.
"Vettel is a number 1 driver," he said. "His heart is for Ferrari and if the team is competitive, you can't discount him."
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