I remember a good 5 years ago or so nipping on a Virgin Super Voyager (221115 iirc) for a short Preston to Lancaster trip, and being impressed by the interior display unusually displaying 'current speed xxx mph, outside temperature.. x ' , before then doing an advertisement about the shop.
I've never had any other Voyagers/Super Voyagers/Pendolinos displaying nice info, like the current speed etc, which I'd personally enjoy seeing.
I was once on a XC 2x5-car Super Voyager one weekday. Originally sat in the extreme front carriage for First Class, until the TM told me the rear set had literally no one in it, apart from a FC host.
After a few mins & chatting to the friendly chap, he showed me on the display in the TM's office [whilst he was based in the other set] all the different things it can tell the crew, like speed, faults etc. Was quite interesting.