October 2015: Lewis Hamilton wins the world championship.
October 2016: Lewis Hamilton falls 23 points behind Nico Rosberg in the title race.
What a difference a year makes, eh?
Hamilton may have been able to put his feet up from the final races of last season, but it is going to take all of his skill and mental strength to prevent this year's championship from slipping away.
A hugely frustrating day for the Briton. Fortunately he doesn't have long to think about it, because the Japanese Grand Prix starts on Friday. Not to be missed.
Until then, goodbye.