The Mercury 310 Sport Gray (PVC) 2006 vs Mercury V-570 2011 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 V-570 2011 measures 18,3 feet overall (2011), giving it roughly 17,3 additional feet of deck space compared to the Mercury 310 Sport Gray (PVC) 2006 at 1,0 feet (2006). Weight tells a clearer story for trailering families: the Mercury V-570 2011 tips the scales at 818 lbs — 706 lbs less than the Mercury 310 Sport Gray (PVC) 2006 at 112 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 135 hp, the Mercury V-570 2011 has a 120-hp advantage over the Mercury 310 Sport Gray (PVC) 2006's 15-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Mercury V-570 2011 is rated for 15 passengers, while the Mercury 310 Sport Gray (PVC) 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 V-570 2011 could be the deciding factor.
Bottom line: Choose the Mercury V-570 2011 if your priority is putting more people on the water — it handles 15 passengers and at 18,3 ft it has the deck room to back that rating up comfortably. The Mercury 310 Sport Gray (PVC) 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.