DGC 6865 looks great, full 60cm height 68l capacity which is quite a fair bit more than Miele DGC 6805 at 48l and Zug/Wolf at 51l, and Gag at 43l. FWIW, Miele full size 60cm is just a touch bigger at 76l, VZUG 60cm combi steam/microwave MSLQ is at 55l.

A new rage of 45cm combi steamer from Bosch, Siemens, and Neff is already out in a few countries with larger internal capacity at 47l. They would also have top and bottom heat along with the usual ring heat element at the back. Neff UK also has a range of 60cm combi steamer with capacity at 71l as well. Gag probably will have something that is built around the same design in the very near future.