Interesting....
Look at the tools next to the power drive cleaner, what we know as a Dialamatic in the states. Here in the states, that type of tool goes on a Convertible (Senior in Europe). On the stateside Dialamatics, the tool conversion is on the rear of the hard body, with a switch to deflect suction from the bottom to the hose.
On the "suction" cleaners, what are those red tabs on top of the nozzle? Is that to adjust for floor or rug cleaning?