There's nothing really special about this model, other than it being one of the early Scalextric models. It went quite well in its day and if I remember correctly, was a proper slider!
This one I inherited from an old chap around twenty years ago. His son had fled the nest many years before and after clearing out his loft, he presented me with this very fine specimen.
I keep it in it's original box and it rarely sees the light of day. So, I gave it a bit of a dust and a clean, popped on some wire wheels and took a few pics.