When two boats share the same hull type — in this case both the Velocity 322 2009 and the Velocity 400 Xover 2008 are modified vee designs with composite construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Velocity 400 Xover 2008 measures 39,0 feet overall (2008), giving it roughly 8,0 additional feet of deck space compared to the Velocity 322 2009 at 31,0 feet (2009). Weight tells a clearer story for trailering families: the Velocity 322 2009 tips the scales at 695 lbs — 688 lbs more than the Velocity 400 Xover 2008 at 7 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 525 hp, the Velocity 322 2009 has a 225-hp advantage over the Velocity 400 Xover 2008's 300-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Velocity 322 2009 carries 125 gallons versus 4 gallons in the Velocity 400 Xover 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Bottom line: The Velocity 400 Xover 2008 at 39,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Velocity 322 2009 at 31,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.