The concept is quite old. It was first presented to the public in '02 when Ferdinand Piech drove it to the stockholders meeting. The model they are now conside

The concept is quite old. It was first presented to the public in '02 when Ferdinand Piech drove it to the stockholders meeting. The model they are now considering to build is based on a variation of the concept, that they showed in 2011. If I remember right the first concept was not a hybrid but only powered by a diesel. The car is said to go into production in a small series and to sell for about 50k€. I guess it has been pushed by Piech himself who is famous for pushing out complex engineering concepts to production even tough the company will loose money on every sold product. (See also Bugatti Veyron)