Honda to keep current engine as "a back-up plan" in case of issues with the 2018 spec:https://t.co/7SxoswxshZ #F1 pic.twitter.com/IVhZam1U9Z— Motorsport.com (@Motorsport) December 30, 2017
Honda to keep current engine as "a back-up plan" in case of issues with the 2018 spec:https://t.co/7SxoswxshZ #F1 pic.twitter.com/IVhZam1U9Z