Richard don't think that the majority of the boats there were any younger either
Seriously though, the only new boat at the X is the Hummer Hull 31 Open. Aparently has taken them 7 years of design and testing to produce it. The Cabin version was produced 1 years ago and now they have built the open version but with cabins again (only usefull for theGreece though in the summer).
The boat according to the manufacturer due to its dynamic and very hydrodynamic design can plane quicker than other boats of the same length and similar weight (about 1600kgs), thus you can use a relative small engine to power it and and can keep consumption to the minimum.
Have attached a photo that explains why I think.
On the right is a conventional hull boat with water active surface at 8.54 sq mtrs. Where as the Hummer Hull has only 3.63 sq mtrs, due to the step hull. But only to be used for long boats over 9mtrs+. Is not good for short boats (aparently)