Sam Jefferson takes a look at this year’s Southampton International Boat Show and some of the exciting new yachts on show… Grab your tickets now! All new in 2025, the Dufour 48 is designed by the French manufacturer’s go to naval architect Umberto Felci and takes the concept of using full forward sections to boost internal volume to the next level. This new boat is 10% roomier than its predecessor, the Dufour 470 and looks like a boat that is ideal for cruising with the family.