When two boats share the same hull type — in this case both the Campion 645i SC 2009 and the Campion Explorer 622 SD BRA 2010 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Campion 645i SC 2009 at 23,0 ft versus Campion Explorer 622 SD BRA 2010 at 23,5 ft. Weight tells a clearer story for trailering families: the Campion Explorer 622 SD BRA 2010 tips the scales at 4 392 lbs — 355 lbs less than the Campion 645i SC 2009 at 4 037 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 Campion 645i SC 2009 has a 95-hp advantage over the Campion Explorer 622 SD BRA 2010's 225-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 Explorer 622 SD BRA 2010 carries 71 gallons versus 56 gallons in the Campion 645i SC 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Campion 645i SC 2009 is rated for 9 passengers, while the Campion Explorer 622 SD BRA 2010 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Campion 645i SC 2009 could be the deciding factor.