Thanks for the responses.
It's not easy to find a definitive answer, but having taken delivery of the car and made a preliminary scan of the manual (a first for me - I usually consider it cheating to read the instructions, but there are one hell of a lot of functions on this car) I think scandy looks to be right.
The manual was published 2005 and whilst there are a couple of lower audio, key and aircon options mentioned, I get the impression that in UK spec, everything except the pre-crash & adaptive cruise (which it says came together) was standard. So far this means Bluetooth, reverse camera, voice command, sat nav, keyless go, rear-seat button-fest, all there as standard, and I'm still discovering stuff. Like a volume knob for the internal bong alerts! I'm the biggest gadget fan I know, but I'm almost feeling techno'd out tonight. Almost.
It's not so much an armchair on wheels as a mobile gadget festival. Marvellous.
