I would love to see this on the road.

I think it's a good thing that it is limited edition. It makes it more exclusive, naturally. And that also makes it more valuable.
The Gallardo lacks exclusivety bacause it has become so common.
Don't get me wrong, it is still very exclusive IMO, but not in the same way as the older lambos.

The Concept S needs some engineering rework, which will cost.
Thus, making a profit on a limited edition, must make it very expencive.
But still..., £640,000