The Campion 645i SC 2009 is a modified-V design and the Campion Allante 595ob SC 2013 is a deep-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department - Campion 645i SC 2009 at 23,0 ft versus Campion Allante 595ob SC 2013 at 21,0 ft. Weight tells a clearer story for trailering families: the Campion 645i SC 2009 tips the scales at 4 037 lbs - 1 691 lbs more than the Campion Allante 595ob SC 2013 at 2 346 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.

Both boats share a closely matched power ceiling - 320 hp for the Campion 645i SC 2009 and 300 hp for the Campion Allante 595ob SC 2013. 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 645i SC 2009 carries 56 gallons versus 47 gallons in the Campion Allante 595ob SC 2013. 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 Allante 595ob SC 2013 is rated for 10 passengers, while the Campion 645i SC 2009 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Campion Allante 595ob SC 2013 could be the deciding factor.