This Electrotren 5 unit AVE S-112 model is pretty fascinating.
I recall seeing these in Spain and was taken by the oddness of the shape of the nose.
Electrotren has this in 3 rail digital with sound (E3515S) and without (E3515).
By the looks of things, these models come with interior coloured to match the original trains.
I have the version with sound on order from Lippe and have the intermediate cars coming in also to create the full train.