The Xpress H18 2009 is a modified-V design and the Xpress Livewell - 1450LW 2008 is a flat-bottom design, so you're likely deciding between two noticeably 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 H18 2009 measures 18,0 feet overall (2009), giving it roughly 4,0 additional feet of deck space compared to the Xpress Livewell - 1450LW 2008 at 14,0 feet (2008). Weight tells a clearer story for trailering families: the Xpress H18 2009 tips the scales at 1 290 lbs - 900 lbs more than the Xpress Livewell - 1450LW 2008 at 390 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 150 hp, the Xpress H18 2009 has a 125-hp advantage over the Xpress Livewell - 1450LW 2008's 25-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 4 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
At this size, power-to-weight ratio matters more than outright horsepower. The Xpress H18 2009 comes in at 9 lbs per hp versus 16 lbs per hp for the Xpress Livewell - 1450LW 2008. The lower the ratio the more explosive the acceleration - meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: The Xpress H18 2009 at 18,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Xpress Livewell - 1450LW 2008 at 14,0 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.