Since it's first presented at Paris motor show 2014, that opened on October 4, it's brand new. So if you want to know about the problems that are typical for this model, I'm afraid you'll have to wait a few years.
In the mean time, read much more than in the link you gave in http://www.cnet.com/uk/news/volkswagen-xl-sport-brings-ducati-power-to-create-the-ultimate-efficient-supercar/ or http://www.carmagazine.co.uk/News/Search-Results/First-Official-Pictures/VW-XL-Sport-unveiled-at-Paris-motor-show-2014/
i find this Car in http://nationalfutur.com/motion/volkswagen-xl-sport/5498/ and i want to ask you plz if it's great to buy it or not ? and about if they are problems about it ?