[ptack]

I doubt Vettel is walking away from F1 unless he has a miserable year, wins no races and continues to make stupid mistakes. Barring that extreme drop in ability, I'm sure he will still believe he can beat Hamilton with the right car, strategy and luck. Formula 1 drivers, especially world champions, have supersized egos. He might have serious doubts if Ferrari and Leclerc were doing better, but Ferrari is so screwed up right now no driver would see themselves as the problem there.