My X3 was one of these.
The previous owner had it from 2018-2022.
I picked it up with 38,000km at a good price.
A year later I found out that BMW Sandton didn't disclose that the car had front end accident damage - nothing appeared on the Plan Comments. Apparently, the previous owner fixed it privately and it didn't flag on the BMW system. This also goes to show that BMW doesn't properly inspect their Select Used stock (apart from glaring issues), so buyer beware.
I would guess a similar line of logic to above would have been applied by the original owner: Get it fixed off grid at all costs in order to avoid the penalties (Just scaled up from a rim to front accident damage) and then the dealer doesn't pay much of any attention to it when it is returned as he is eager to rent the next car out to them. As far as I can tell, there is also no consequence for the previous owner if they do this.
Can definitely agree that there is minimal vetting on select stock and even during motorplan inspections unless it is an M car (and even then still minimal vetting on accidents). I have seen cars at Fourways and Midrand that have obvious repairs (and even still 'smell' like a panel shop inside - IYKYK)
I still don't think the 'no accident history' or 'no comments' thing is any good as it stigmatises cars that have otherwise good repairs or minimal (but expensive) damage repaired while at the same time 'rubber stamping' cars like the above that are hiding repairs of unknown quality. Seen many of these threads and comments now about how "OMG it has a R300K comment" but it doesn't have any context to go with it - the value in isolation doesn't tell you anything in these days of R100K headlights and R50K electronic modules or R50K cooling system components. The fact that BMW and others don't disclose anything other than the value is also a problem as you then have to track down details yourself.