When two boats share the same hull type — in this case both the Larson 288 LXi 2010 and the Larson LX 850 Classic SF 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 Classic SF 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 Classic SF 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 Classic SF 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 Classic SF 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.
For family outings this is probably the sharpest distinction between the two. The Larson 288 LXi 2010 is rated for 8 passengers, while the Larson LX 850 Classic SF I/O 2012 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson 288 LXi 2010 could be the deciding factor.
Bottom line: Choose the Larson 288 LXi 2010 if your priority is putting more people on the water — it handles 8 passengers and at 29,2 ft it has the deck room to back that rating up comfortably. The Larson LX 850 Classic SF I/O 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.