Matching a deep vee Xpress DVX Series - DVX165 2008 against a modified vee Xpress X21 2009 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Xpress X21 2009 measures 21,0 feet overall (2009), giving it roughly 5,0 additional feet of deck space compared to the Xpress DVX Series - DVX165 2008 at 16,0 feet (2008). At 106 lbs and 158 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 250 hp, the Xpress X21 2009 has a 160-hp advantage over the Xpress DVX Series - DVX165 2008's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Xpress DVX Series - DVX165 2008 is rated for 5 passengers, while the Xpress X21 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Xpress DVX Series - DVX165 2008 could be the deciding factor.
Bottom line: Choose the Xpress DVX Series - DVX165 2008 if your priority is putting more people on the water — it handles 5 passengers and at 16,0 ft it has the deck room to back that rating up comfortably. The Xpress X21 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.