When two boats share the same hull type — in this case both the Sea Ray 47 Sedan Bridge 2011 and the Sea Ray 510 Sundancer 2013 are semi displacement designs with fiberglass construction — 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 — Sea Ray 47 Sedan Bridge 2011 at 50,7 ft versus Sea Ray 510 Sundancer 2013 at 50,8 ft. At 375 lbs and 434 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 574 hp, the Sea Ray 47 Sedan Bridge 2011 has a 31-hp advantage over the Sea Ray 510 Sundancer 2013's 543-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray 47 Sedan Bridge 2011 carries 53 gallons versus 4 gallons in the Sea Ray 510 Sundancer 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 15 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.