Toro Rosso F1 technical director James Key says that the switch from Renault to Honda for 2018 is not straightforward because of the way the two engines are designed. The Faenza-based squad will use the Japanese power units from next year after having used the Renault engines during 2017. The different locations of the turbo compressors meant that fitting the Honda is not a straightforward swap into a car that was originally being designed around the French engine. McLaren, which will switch from Honda to Renault engines, faces the same challenge in reverse. "They [the engines] are completely different," Key told Motorsport.com. "It's a very nicely packaged engine, but the...
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