If Vettel wins or finishes 2nd and Webber/Button finish low down so that the three drivers after Vettel in standings score little or no points then yes title is effectively over if we assume RB's/Vettel's pole/race winning form carries on.I am so annoyed with the SC crap and what a tit is Lewis.
I think this WC will be the highest lead ever, it is almost over already
I think taking the grass route would make his tyres quite slippery. If that's possible considering the weather. I'm sure FIA can see telemetry of Vettel cutting the chicane there and see how much faster/slower he went over grass compared to taking corner normally and decide if he did it deliberately.because instead of slowing down and rejoining the track near he went off he just cruised in a straight line cutting the chicane, it saved about 5secs but the FIA only penalise if you make up a place not for gaining time.