Can't imagine these are all actual orders that have been cancelled?
Tesla don't build Model 3's to order, so they have to estimate demand and then ship it. If they over estimate then these cars appear as inventory - as is the case with all these White cars.
I had a look at the order spreadsheets here at TMC, and from this sample, white is the most popular at 29.3%, followed by MSM and Blue (19.4%), Black (14.6%) then Red (12.4%)
FSD is in 31.5% of orders - (possibly over inflated through the sample source being TMC readers)
Interior is 24.3% White and 75.4% Black
SR+ is 19.4%, LR 53.8% and P 26.8%
So you can see that these tesla "overbuilds" do broadly match the order history here at TMC.
I calculated my spec to be at 0.19% of builds based on these probabilities (19" wheels at 24.3% of orders), so for every 1000 UK cars, it would be sensible for Tesla to build two in my specification - but it seems for Q1 deliveries they have not built any.. unless others got in before me, which is possible but unlikely as I ordered very soon after the 19" wheels re-appeared as an option.
I would be interested to know if after ships arrive the service centers can swap wheels or electronically add/remove FSD as required pre-delivery, as that would then increase the number of builds that meet any given spec - e.g. for my spec it would increase from 0.19% to 2.5%, allowing for an easier match of orders to deliveries.
Its funny how I have time to work all this out.. the things I do when I haven't got a VIN!