Cars missing from Legendary Motorsport

[BaseCu]

I was told by the WIki and a few other forum posts the only way to actually get the Entity XF (and a few other cars, but the Enitity is what I'm looking for) is to buy them on Legendary Motorsport. However, my Legendary Motorsport page seems to.... Lack these cars and a few others in single player.
Here's a screenshot of my page (had to clip the names of the top 3 cars and just the image of the Vacca, since it wouldn't all fit in my screenshot)
https://i.imgur.com/eAVLW0E.jpg

[BaseCu]

Because of forum flooding my post went to page 5 within ten minutes before it got a single reply, so I'm using this as a self bump