Confusing car types B-YZ-2CAL2

[daz75]

I've been looking at the yz2 and I'm confused (doesn't take much)

So the CA is for carpet but this doesn't seem to be available any where
The DT is for dirt
Is the DTM also for dirt but the maifield edition?

What's this new car on mbmodels website is this the carpet replacement?

https://www.rccarshop.co.uk/race-kit...ue-end-march-p