Oh, so it is deeper.
I was checking the parts list for the 1200 and 1000 and they both use the same dampers, on all drawings you could see the same number of honeycombs and the same weight made me believe they just had to have the same drum.
Especially since the German parts catalog does not list part numbers for the tub units, so I wasn't able to verify that.
Can you share where you got the info from?
65l vs 73l makes A LOT of sense. That's basically the same drum sizes as the LiGis: 57l, 64l and 71l.
There were machines with similar depths. The washer dryer combos always had 1 size drum down from what could fit in the cabinet as Miele fits the fan behind the tub on the WT1s.
That lead to the TOL 9/6kg WT1 being as deep as the LiGis at something slightly above 70cm though having the same size drum as the normal W1s.
LiGis all have the same cabinet regardless of tub size.
I've never seen one of the 8kg/71l LiGis IRL so I can't say if it's a blank ring added like on those videos.
Having a bigger drum at the same load size for a more efficient machine makes sense. Allows for more mechanical action, which in turn allows you to reduce energy usage.
Given that chemistry is fixed and time is limited as well on the new energy label, that's 100% what they've done there.
Why they limited the spin to 1400rpm and haven't shortened the regular cycles or at least offered a 10kg version with just class A seems weird to me still.