Both the Glastron GT 185 2010 and the Glastron MX 170 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 185 2010 at 18,4 ft versus Glastron MX 170 2008 at 17,0 ft. Weight tells a clearer story for trailering families: the Glastron GT 185 2010 tips the scales at 2 315 lbs - 830 lbs more than the Glastron MX 170 2008 at 1 485 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.

For family outings this is probably the sharpest distinction between the two. The Glastron GT 185 2010 is rated for 8 passengers, while the Glastron MX 170 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Glastron GT 185 2010 could be the deciding factor.