my respect for VW will increase enormously if they can get this into production, but its hard to see how they could at any reasonable cost. A unique structure in carbon fibre, a 2 stroke diesel engine not shared with anything else they make, the whole hybrid set up, all adds up to a serious high price.
They would be better off doing a 100 bhp 1 litre petrol version and selling it as a Lamborghini or Bugatti at a price that goes with those names. ( But given their badge engineering maybe those cars are yet to come!)
405 Le Mans, Monaro CV8, S2000, MKX 3.8. No more space.