When two boats share the same hull type — in this case both the Larson 288 LXi 2010 and the Larson LX 850 I/O 2012 are modified vee designs with fiberglass 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 Larson 288 LXi 2010 measures 29,2 feet overall (2010), giving it roughly 10,8 additional feet of deck space compared to the Larson LX 850 I/O 2012 at 18,4 feet (2012). Weight tells a clearer story for trailering families: the Larson 288 LXi 2010 tips the scales at 597 lbs — 352 lbs more than the Larson LX 850 I/O 2012 at 245 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 425 hp, the Larson 288 LXi 2010 has a 290-hp advantage over the Larson LX 850 I/O 2012's 135-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Larson LX 850 I/O 2012 carries 19 gallons versus 1 gallons in the Larson 288 LXi 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 8 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.
Bottom line: The Larson 288 LXi 2010 at 29,2 ft is the right call if deck space, comfort, and entertaining are top of your list. The Larson LX 850 I/O 2012 at 18,4 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.