Although there’s no accurate time support for launch only yet, Autocar has schooled from an inside source that McLaren will build a pure-electric hypercar as partial of a Ultimate Series. To be clear, this is not a same as a recently announced P15 and three-seat BP23. The former will launch after this year while a F1-style three-seater is due in 2018. The Ultimate Series EV will launch someday afterwards. We can’t contend this news, presumption it turns out to be true, is all that surprising.
source ⦿ http://www.carbuzz.com/news/2017/8/17/McLaren-Working-On-All-Electric-Ultimate-Series-Hypercar-7740650/