Thanks for getting back to me.
I don’t think the hierarchy is the issue, I don’t have dummies on the wheels but didn’t on the last one and seemingly there’s no need for it in UE4 as the existing BP model doesn’t seem to have them.
It’s recognising the hierarchy and that the wheels are set correctly in UE4 they just happen to be driving sideways again, I think that’s the issue and I’m not sure where I’m going wrong.
I’ve set it to Z-Up (It was on Y).
It looks alright on the BP now, the camera is behind it, the wheels rotate the right way, but the car drives sideways. (However the camera is sideways too when you actually play it).
The car is also running along the x-axis, after x-forming it.