When two boats share the same hull type — in this case both the Mercury 310 Sport PVC 2013 and the Mercury 350 Amanzi 2008 are inflatable non rigid designs with plastic 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 — Mercury 310 Sport PVC 2013 at 9,5 ft versus Mercury 350 Amanzi 2008 at 11,0 ft. Weight tells a clearer story for trailering families: the Mercury 310 Sport PVC 2013 tips the scales at 132 lbs — 128 lbs more than the Mercury 350 Amanzi 2008 at 4 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.

Both boats share a closely matched power ceiling — 15 hp for the Mercury 310 Sport PVC 2013 and 30 hp for the Mercury 350 Amanzi 2008. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

Both boats are rated for 4 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Mercury 350 Amanzi 2008 comes in at 0 lbs per hp versus 9 lbs per hp for the Mercury 310 Sport PVC 2013. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.