Was the protracted build-up to this week's launch of the McLaren 570S just a smokescreen for a more exciting car? An insider who said he'd be 'cast into the fires of hell' if we said anything (sorry, publish and be damned...) has let slip details of a new open top speedster-style track car putting a minimalist twist on McLaren's existing Monocell chassis. A slightly detuned version of the 670LT motor putting out 666hp has apparently been paired with some distinctive looking aero, including a triangular extension to the tail and appendages nicknamed 'horns' up front.
http://www.pistonheads.com/news/ph-britishcars/mclaren-666s-announced/31920
http://www.pistonheads.com/news/ph-britishcars/mclaren-666s-announced/31920