Matching a modified vee Campion 800i SC 2009 against a deep vee Campion Allante 535i 2012 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Campion 800i SC 2009 measures 28,0 feet overall (2009), giving it roughly 10,2 additional feet of deck space compared to the Campion Allante 535i 2012 at 17,8 feet (2012). Weight tells a clearer story for trailering families: the Campion 800i SC 2009 tips the scales at 4 855 lbs — 4 837 lbs more than the Campion Allante 535i 2012 at 18 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 460 hp, the Campion 800i SC 2009 has a 310-hp advantage over the Campion Allante 535i 2012'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 Campion 800i SC 2009 carries 63 gallons versus 24 gallons in the Campion Allante 535i 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 7 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 Campion 800i SC 2009 at 28,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Campion Allante 535i 2012 at 17,8 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.