Mercedes has “a few balls in the air” over F1 engine reliability

While the German car manufacturer hopes to get through the rest of the season without needing a fresh power unit for Lewis Hamilton, there are growing concerns that it may have to do so and take a grid penalty.
The precarious situation the team is in was highlighted over the Russian Grand Prix weekend when a fresh engine that Valtteri Bottas had fitted in Italy hit trouble and had to be …Keep reading