Whatever anyone says, this is momentous for the McLaren brand. I've always known how difficult it is to establish a new car brand at the level McLaren have always aimed for. it is said that the second generation of a car is the one that begins to make money (for lots of reasons), and this is their first 'second' generation. Whatever the press releases say about McLaren already making money (never really believed that and as an accountant by training have good reason not to) if the P14 is a fully developed new model, then it is something to be excited about on a brand level. Whether you like the car or not is a bit immaterial because many will, and I suspect loyal customers will.
Even if the current ownership/management screwed it up from here, the brand is developed enough in terms of product, customer base, awareness etc. that it would survive by being bought/taken over by someone else. They have done the hardest bit.
I think this could/should mark McLaren's 'coming of age', and for that, McLaren deserve major credit IMV.
Past - M Roadster, XKR, E46 M3, 996 C4S, 997 C2, DB9, 360 Spider, DBS, 430 Spider, California, Challenge Stradale, 12C Spider
Current - Cosworth Impreza CS400, 997 GTS Cab, Range Rover Sport, Speciale, FF