I heard this rumour already a few months ago, but in the other version, McLaren was to be its own brand, and a super-sporty supplement to the super-luxurious Maybach brand.

I hope that McLaren is its own brand and doesn't sport a 3 pointed star. also, i had heard that the McLarens would be powered not by an AMG V8, but a super-high-rpm V10 to underscore the F1 connection.