There’s no solid state batteries big enough to put in EVs yet they’re using lithium iron phosphate like everyone else.
That 620km wltp is from the rwd long range that has a 0-100km of 7.2s reading the specs over there you “only” get 585km wltp on the awd fast one.
I dread to think what that’s like, the 6s odd in the 85x is NUTS fast lol