"But he doesn't see me as a Formula One driver like a lot of other people, who might be afraid about what they should do or say to me.
"If I do something good, he's very happy and he'll tell me so. But if I do a bad thing, he'll tell me where I've gone wrong. That is important when it comes to doing a good professional job."
Massa goes into his home Grand Prix trailing Hamilton by seven points and knows he must win or at least finish second, and hope his rival slips up and finishes outside the top five in order to claim a maiden title. Smedley believes his man is up to the task. He said: "I'm a north of England boy and I will keep pushing Felipe right to the end.
"Felipe is hungry, he wants this. He knows he is in a car that's capable of winning the world championship, and he knows that, as a driver, he is capable of winning the world championship."
The engineer has watched the progress the 27-year-old has made since joining Ferrari in 2006 as understudy to Michael Schumacher. He added: "As a driver, Felipe has improved from black to white, 100 per cent. He was always quick but a bit wild at times. He's matured, and if I've done anything for him it's to steer him in the direction of being calmer about things, and being cooler under pressure."
That was evident in Singapore at the end of September when a pit lane blunder, in which Massa was allowed to race away with the fuel hose still attached to his car, cost almost certain victory.
Smedley said: "Four or five years ago, what with his Latin temperament, the toys would have come out of the pram."
Instead, Massa took the blow on the chin and even went out of his way to console the distraught Ferrari mechanic responsible for the mistake.
"Felipe keeps going from strength to strength," concluded Smedley. "And I know he'll be strong enough this weekend."
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