The outright dominance of this year's Mercedes Formula 1 car has made it difficult to bet against when it comes to taking grand prix victories in 2019.
But there have been times in F1's history where top teams have produced a disappointing challenger, yet have still managed to steal a surprise win - whether through luck or circumstance. And even times when backmarker squads have somehow ended up atop the podium.
We count down what we consider to be the top 10 worst F1 cars ever to have won a grand prix, from Sebastian Vettel's 2008 first taste of victory in the Toro Rosso STR03 to Jim Clark's heroics in the Lotus 43 and plenty of crazy tales in between.