Matching a modified vee Campion 645i BR 2009 against a deep vee Campion Allante 705i SC 2013 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 Allante 705i SC 2013 measures 26,2 feet overall (2013), giving it roughly 3,2 additional feet of deck space compared to the Campion 645i BR 2009 at 23,0 feet (2009). Weight tells a clearer story for trailering families: the Campion 645i BR 2009 tips the scales at 4 037 lbs — 3 582 lbs more than the Campion Allante 705i SC 2013 at 455 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 430 hp, the Campion Allante 705i SC 2013 has a 110-hp advantage over the Campion 645i BR 2009's 320-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 Allante 705i SC 2013 carries 69 gallons versus 56 gallons in the Campion 645i BR 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 9 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 Allante 705i SC 2013 at 26,2 ft is the right call if deck space, comfort, and entertaining are top of your list. The Campion 645i BR 2009 at 23,0 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.