I think I may have worked out what's going on. Take this car
2017 Model S | Tesla
After a bit of super sluthing, this is the embedded data for that car on the Tesla detail page around the VIN found by simply right clicking and doing a view source
"UsedVehiclePhotosCompletedDate": "2020-09-13T05:00:00Z",
"VIN": "5YJSA1E20HF200010",
"Variant": null,
"VehicleHistory": "CLEAN",
"VehicleRegion": "CA",
"VehicleStatusDisplay": "In-garage delivered",
"VehicleSubType": null,
"VehicleType": "INVENTORY",
Note:There is an element called UsedVehiclePhotosCompleteData that is populated and only a week ago and some time after this thread started,
If I look at the top level listings page its much harder to find the equivalent data as you have to find "inventory-results" content using the browser inspect and the data looks near identical around the VIN except it include extra data
"UsedVehiclePhotosCompletedDate": "2020-09-13T05:00:00Z",
"VIN": "5YJSA1E20HF200010",
"Variant": null,
"VehicleHistory": "CLEAN",
"VehiclePhotos": [
{
"height": 0,
"imageUrl": "
https://inventory-assets.tesla.com/...on/image/c61f66d8-395f-43e5-9b72-a60377896ebd",
"photoType": null,
"pictureType": "Front Full View",
"width": 0
},
### SNIP ###
{
"height": 0,
"imageUrl": "
https://inventory-assets.tesla.com/...on/image/68094337-0b4c-4616-8606-dd95ec352b2f",
"photoType": null,
"pictureType": "Front Interior View From Passenger Side",
"width": 0
}
],
"VehicleRegion": "CA",
"VehicleStatusDisplay": "In-garage delivered",
"VehicleSubType": null,
"VehicleType": "INVENTORY",
In this data there is an extra bit of content called "VehiclePhotos" which lists all the images.
Whether it is by design or mistake, it looks like the photos are still being taken (as this particular car had them taken in the last week) but the data is not passed to the individual car page to display them on the Tesla website. I can only think that the 3rd party sites are getting the latter set of data including the images to display them.
That's why on this link you can see the pictures:
2017 Tesla MS 90D in US listed at $63,600
I'm no internet expert so caveats apply, but it seems logical