@diplobrat, DTwatCat#1 has a middle name. A very unimportant one. So unimportant, I kept it secret from DP.
I deliberately did it so that DP, who was taking him to his first appointment, would have the vet call out in front of everybody 'DTwatCat Slartibartfast Wankerly-DoublebarrellDP'sName'.
He might have threatened me with murder most horrid for doing that to him. It was worth every moment.
Anyhow, back to the point of your post, DTwatCat #2 has suspected MC heritage, as she's got ear tufts, so much fur between her toes that she power drifts around corners and the biggest set of feathers fluffiest arse in town. Yours looks slightly more TV than the weegie or MC.
However, I suspect like most posh breed cats that are flogged by the feline equivalent of BYBs (such as the type who sell to people in flats - exactly how I ended up with rescuing #2), they've all got random mog more than anything that can be attributed to any one breed, so there's absolutely no way of telling, as BYBs aren't too careful with the part weegie being kept away from the part MC and from the others in the area.
They've got away with it in dogs by bastardising the names to claim it's a 'breed' and not a mongrel. But cats are too similar to need to make up a name, they just sell them under what they think the kitten will get the most money/whatever advert of multiple gumtree entries is answered by a punter.