When two boats share the same hull type — in this case both the Sea Ray 520 Sedan Bridge 2011 and the Sea Ray 540 Sundancer 2009 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 520 Sedan Bridge 2011 at 52,3 ft versus Sea Ray 540 Sundancer 2009 at 54,8 ft. At 42 lbs and 5 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 764 hp, the Sea Ray 520 Sedan Bridge 2011 has a 190-hp advantage over the Sea Ray 540 Sundancer 2009's 574-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 5 gal and 6 gal — so range won't be a tiebreaker here.

The Sea Ray 520 Sedan Bridge 2011 is rated for up to 15 people. Passenger data for the Sea Ray 540 Sundancer 2009 wasn't available.