Both the Glastron GT 180 2011 and the Glastron GT 205 2008 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 - Glastron GT 180 2011 at 17,1 ft versus Glastron GT 205 2008 at 20,0 ft. Weight tells a clearer story for trailering families: the Glastron GT 205 2008 tips the scales at 2 780 lbs - 1 280 lbs less than the Glastron GT 180 2011 at 1 500 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 270 hp, the Glastron GT 205 2008 has a 120-hp advantage over the Glastron GT 180 2011's 150-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Glastron GT 205 2008 carries 35 gallons versus 23 gallons in the Glastron GT 180 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Glastron GT 180 2011 is rated for up to 8 people. Passenger data for the Glastron GT 205 2008 wasn't available.