The Campion S 505 CD OB 2005 vs Campion S 545i BR 2008 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 S 545i BR 2008 measures 20,0 feet overall (2008), giving it roughly 4,0 additional feet of deck space compared to the Campion S 505 CD OB 2005 at 16,0 feet (2005). Weight tells a clearer story for trailering families: the Campion S 545i BR 2008 tips the scales at 2 886 lbs - 1 606 lbs less than the Campion S 505 CD OB 2005 at 1 280 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 225 hp, the Campion S 545i BR 2008 has a 100-hp advantage over the Campion S 505 CD OB 2005's 125-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 S 545i BR 2008 carries 29 gallons versus 19 gallons in the Campion S 505 CD OB 2005. 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 S 545i BR 2008 is rated for 8 passengers, while the Campion S 505 CD OB 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Campion S 545i BR 2008 could be the deciding factor.
Bottom line: Choose the Campion S 545i BR 2008 if your priority is putting more people on the water - it handles 8 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Campion S 505 CD OB 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.