Don't understand why they needed to do this. It takes the thunder out of the P1 (the front end isn't unique any more) and the 12C (this seems like quite an upgrade).
The hood is, actually, quite a bit different from that of the P1, I think, though from the chin down they're similar. But the overall curvaceousness of this thing is gorgeous.
The P1 (here) is the high school prom queen, but the 650S above is Sophia Loren.
Note that I'm not talking performance. The P1 is, to quote Jeremy Clarkson, "a game-changer" . . . "astonishing". It does things cars have never done before. But the 650S has the looks--and I'm pretty sure the performance isn't all bad, either!