The Campion Allante A20 IO SC 2022 vs Campion S 505i BR 2007 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 Campion Allante A20 IO SC 2022 measures 21,6 feet overall (2022), giving it roughly 5,6 additional feet of deck space compared to the Campion S 505i BR 2007 at 16,0 feet (2007). Weight tells a clearer story for trailering families: the Campion Allante A20 IO SC 2022 tips the scales at 3 400 lbs — 1 426 lbs more than the Campion S 505i BR 2007 at 1 974 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 350 hp, the Campion Allante A20 IO SC 2022 has a 215-hp advantage over the Campion S 505i BR 2007's 135-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 A20 IO SC 2022 carries 42 gallons versus 24 gallons in the Campion S 505i BR 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 6 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 A20 IO SC 2022 at 21,6 ft is the right call if deck space, comfort, and entertaining are top of your list. The Campion S 505i BR 2007 at 16,0 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.