The Mariah FS18 Fish & Ski 2006 vs Mariah R26 2012 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Mariah R26 2012 measures 26,4 feet overall (2012), giving it roughly 8,4 additional feet of deck space compared to the Mariah FS18 Fish & Ski 2006 at 18,0 feet (2006). Weight tells a clearer story for trailering families: the Mariah FS18 Fish & Ski 2006 tips the scales at 231 lbs — 226 lbs more than the Mariah R26 2012 at 5 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 Mariah R26 2012 has a 235-hp advantage over the Mariah FS18 Fish & Ski 2006's 190-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mariah R26 2012 carries 75 gallons versus 22 gallons in the Mariah FS18 Fish & Ski 2006. 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 Mariah R26 2012 at 26,4 ft is the right call if deck space, comfort, and entertaining are top of your list. The Mariah FS18 Fish & Ski 2006 at 18,0 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.