I know the following exist but I've never seen them "in the metal" so to speak... Not that I can recall anyway:
206 without power steering. Likely non UK spec
Boxer / Relay 4x4
405 4x4
106 (old shape) with power steering. Again likely LHD only as they had a belt drive pump instead of electric motor for the hydraulic pump
205 with drivers airbag (yes really) I've not seen one in person however I have seen several photographs, LHD and likely the very very last
205 small instrument panel with tachometer. Typically a GR I expect. Note this is the 'thin' panel as fitted to 95% of them but the analogue clock is replaced by a tach
306 3 door base model, either 1.4 or 1.9D (DW8) 99 onwards
406 SRi (with the curious red flexed / grey velour trim) estate. XU9 turbo (8v) unit fitted as per the later 'Exec' models
205 with ABS. AC yes I've seen but ABS no
306 (first shape) with AC with a diesel engine. Most even the XT seemed to not have this I think. Apart from the late 'Spinnaker' models but then it was AC on the 16 or ESR on the 1.9TD
205 cabrio with auto transmission (usually the XU6 engine fitted aka the 1.6GTi unit 'CTi') probably de-tuned a tad
206 base aka 'L' model not LX with AC. Probably non UK spec to get AC on extreme base units, ie 1.1 L / 1.9D L
TU3 1.4 with a cast iron block instead of a alloy one. Like the 1.6 really but a 1.4. I do not recall seeing one, but they are known to be about. Well I do not think I have.
Seems odd that they would omit PAS when the hydraulics are already there.