Both the Bayliner 285 SB 2011 and the Bayliner 315 SB 2011 are deep-V designs, both built in fibreglass, so 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 - Bayliner 285 SB 2011 at 28,6 ft versus Bayliner 315 SB 2011 at 30,5 ft. Weight tells a clearer story for trailering families: the Bayliner 315 SB 2011 tips the scales at 9 098 lbs - 1 042 lbs less than the Bayliner 285 SB 2011 at 8 056 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 380 hp, the Bayliner 285 SB 2011 has a 120-hp advantage over the Bayliner 315 SB 2011's 260-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bayliner 315 SB 2011 carries 120 gallons versus 89 gallons in the Bayliner 285 SB 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 10 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.