Check out the
v-power website (in German!).
According to Micheal Schumacher (who helped with the testing) "Its the best petrol I've ever driven". If that doesnt justify the price I dont know what will....
This
page (again in German) goes to great lengths to say that the new fuel is the only guarenteed 100 octane petrol generally available in Germany and has a very special "Friction reducer".