When two boats share the same hull type — in this case both the Glastron GT 185 SF 2011 and the Glastron GTS 180 2013 are deep vee 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 — Glastron GT 185 SF 2011 at 17,1 ft versus Glastron GTS 180 2013 at 17,8 ft. Weight tells a clearer story for trailering families: the Glastron GT 185 SF 2011 tips the scales at 2 335 lbs — 2 314 lbs more than the Glastron GTS 180 2013 at 21 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 Glastron GT 185 SF 2011 carries a rated maximum of 220 hp. Engine data for the Glastron GTS 180 2013 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 23 gal and 24 gal — so range won't be a tiebreaker here.

Both boats are rated for 8 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.