The Campion 550i BR 2006 vs Campion S 565i SC 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.
On paper these two are close siblings in the size department - Campion 550i BR 2006 at 18,0 ft versus Campion S 565i SC 2006 at 18,0 ft. At 2 400 lbs and 2 500 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.
The power gap is worth calling out. Rated to 320 hp, the Campion 550i BR 2006 has a 95-hp advantage over the Campion S 565i SC 2006's 225-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 29 gal and 28 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Campion 550i BR 2006 is rated for 7 passengers, while the Campion S 565i SC 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Campion 550i BR 2006 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Campion 550i BR 2006 comes in at 8 lbs per hp versus 11 lbs per hp for the Campion S 565i SC 2006. The lower the ratio the more explosive the acceleration - meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: Choose the Campion 550i BR 2006 if your priority is putting more people on the water - it handles 7 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Campion S 565i SC 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.