The Starcraft Marine Crossover 220 SCX I/O 2013 is a deep-V design and the Starcraft Marine Crossover 240 SCX OB 2012 is a tri-hull 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.
On paper these two are close siblings in the size department - Starcraft Marine Crossover 220 SCX I/O 2013 at 21,6 ft versus Starcraft Marine Crossover 240 SCX OB 2012 at 24,3 ft. Weight tells a clearer story for trailering families: the Starcraft Marine Crossover 240 SCX OB 2012 tips the scales at 3 700 lbs - 200 lbs less than the Starcraft Marine Crossover 220 SCX I/O 2013 at 3 500 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 320 hp, the Starcraft Marine Crossover 220 SCX I/O 2013 has a 70-hp advantage over the Starcraft Marine Crossover 240 SCX OB 2012's 250-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Starcraft Marine Crossover 240 SCX OB 2012 carries 75 gallons versus 50 gallons in the Starcraft Marine Crossover 220 SCX I/O 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 13 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 Starcraft Marine Crossover 240 SCX OB 2012 at 24,3 ft is the right call if deck space, comfort, and entertaining are top of your list. The Starcraft Marine Crossover 220 SCX I/O 2013 at 21,6 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.