Both the Larson 370 Cabrio 2010 and the Larson SEi 180 Ski Fish O/B 2007 are modified-V designs, both built in fibreglass, so 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 370 Cabrio 2010 measures 36,9 feet overall (2010), giving it roughly 19,9 additional feet of deck space compared to the Larson SEi 180 Ski Fish O/B 2007 at 17,0 feet (2007). Weight tells a clearer story for trailering families: the Larson 370 Cabrio 2010 tips the scales at 16 800 lbs - 15 100 lbs more than the Larson SEi 180 Ski Fish O/B 2007 at 1 700 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 420 hp, the Larson 370 Cabrio 2010 has a 270-hp advantage over the Larson SEi 180 Ski Fish O/B 2007's 150-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 370 Cabrio 2010 carries 266 gallons versus 23 gallons in the Larson SEi 180 Ski Fish O/B 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.