According to Autocar, the successor to the McLaren 650S is due in 2018. It's anticipated to be based on the same carbon monocoque architecture and 3.8-liter twin-turbo V8 engine that's widely used by the company. Frank Stephenson and his team are also tipped to be working on a new design that will depart sharply from the theme that has characterized the P1 (Ultimate Series), 650S (Super Series), and 570S (Sports Series). Look for that appearance to point the way forward for future McLaren models.
Expect output to exceed the 641 horsepower in the 650S and possibly even the 666 hp in the 675LT. By the time it arrives, Woking's latest will have to contend with even more powerful versions of the Ferrari 488 GTB and Lamborghini Huracán, which produce 661 hp and 602 hp, respectively, in their current iterations. It remains to be seen, however, whether the new Super Series model will adopt hybrid propulsion like the P1.
A hard-top convertible Spider is also anticipated to follow. The new model's internal designation of P14, as Autocar asserts, may finally put to rest the mystery of what Woking was saving that slot for: P11 was used for the 12C (and P11M for the 650S), P12 for the P1, P13 for the new Sports Series, and P15 is said to be earmarked for a new model to slot in between the 650S and P1.