The Campion 682B SC 2007 vs Campion LS 645i BR 2006 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 682B SC 2007 measures 25,0 feet overall (2007), giving it roughly 4,0 additional feet of deck space compared to the Campion LS 645i BR 2006 at 21,0 feet (2006). At 3 640 lbs and 3 700 lbs respectively, both sit in a similar weight class - either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling - 300 hp for the Campion 682B SC 2007 and 320 hp for the Campion LS 645i BR 2006. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Campion 682B SC 2007 carries 104 gallons versus 51 gallons in the Campion LS 645i BR 2006. 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 682B SC 2007 at 25,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Campion LS 645i BR 2006 at 21,0 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.