Valtteri Bottas had to have his engine changed during the Russian Grand Prix, causing the Finnish driver to start from the back of the grid. Although there have been rumours that Mercedes did this to frustrate Max Verstappen, who also started from the back of the grid, Toto Wolff believes this is not the case at all. The German team has serious concerns about the reliability of the engine. Bottas is on his fifth internal combustion engine, MGU-H and turbocharger, which is why Mercedes does not trust the powerplant for a while. "At the moment we are reassessing the performance of the power units because we have question marks and therefore haven’t decided which engines we’ll call...
Full Story »