Valtteri Bottas thinks this has been his most disappointing season in Formula 1, and has been worse that his debut 2013 campaign for Williams when he finished in the points just once. Although Bottas started 2018 strongly and was a contender for victory in Bahrain, China and Azerbaijan, he finished the year without a win - with his best chance in Russia taken away through team orders. "Then the few seasons after I drove better and better, and then this one.