Built on a lengthened version of the Peugeot 407's platform, the C6 will be a similar size to the 607 but unlike that car, could come in five-door luxury hatch form (think Renault Vel Satis and Opel Signum), not just as a booted saloon.
Expect a very high level of gadgets and luxuries; the show car was fitted with head-up displays, infra-red night vision and adaptive headlamps, and some of those features at least will make it into the real thing.