The Campion Allante A20 IO SC 2022 vs Campion LS 645i SC 2005 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.

On paper these two are close siblings in the size department — Campion Allante A20 IO SC 2022 at 21,6 ft versus Campion LS 645i SC 2005 at 21,0 ft. Weight tells a clearer story for trailering families: the Campion Allante A20 IO SC 2022 tips the scales at 3 400 lbs — 3 363 lbs more than the Campion LS 645i SC 2005 at 37 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 30-hp advantage over the Campion LS 645i SC 2005'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 LS 645i SC 2005 carries 51 gallons versus 42 gallons in the Campion Allante A20 IO SC 2022. 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.