Spotted this on a German website ...
http://velomotion.de/2014/07/haibike-xduro-weltweit-erstes-carbon-fully-mit-mittelmotor-2/
What's carefully not mentioned (aside from the price) is the motor/battery. Let's hazard a guess it's 250W Bosch mittelmotor with a 12Ah battery ? Would be a bit like sticking a Skoda engine in a Ferrari if it is
http://velomotion.de/2014/07/haibike-xduro-weltweit-erstes-carbon-fully-mit-mittelmotor-2/
What's carefully not mentioned (aside from the price) is the motor/battery. Let's hazard a guess it's 250W Bosch mittelmotor with a 12Ah battery ? Would be a bit like sticking a Skoda engine in a Ferrari if it is