The Mercury 320 Ocean Runner White (Hypalon) 2006 vs Mercury 340 Air Deck PVC 2012 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Mercury 340 Air Deck PVC 2012 measures 10,5 feet overall (2012), giving it roughly 9,5 additional feet of deck space compared to the Mercury 320 Ocean Runner White (Hypalon) 2006 at 1,0 feet (2006). Weight tells a clearer story for trailering families: the Mercury 320 Ocean Runner White (Hypalon) 2006 tips the scales at 182 lbs — 173 lbs more than the Mercury 340 Air Deck PVC 2012 at 9 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 320 Ocean Runner White (Hypalon) 2006 and 20 hp for the Mercury 340 Air Deck PVC 2012. 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.

For family outings this is probably the sharpest distinction between the two. The Mercury 340 Air Deck PVC 2012 is rated for 5 passengers, while the Mercury 320 Ocean Runner White (Hypalon) 2006 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mercury 340 Air Deck PVC 2012 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Mercury 340 Air Deck PVC 2012 comes in at 0 lbs per hp versus 12 lbs per hp for the Mercury 320 Ocean Runner White (Hypalon) 2006. 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.