The Polar 1788 Rolled Gunnel Flats 2005 vs Polar 2310 Bay 2006 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 Polar 2310 Bay 2006 measures 22,0 feet overall (2006), giving it roughly 5,0 additional feet of deck space compared to the Polar 1788 Rolled Gunnel Flats 2005 at 17,0 feet (2005). At 14 lbs and 24 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 250 hp, the Polar 2310 Bay 2006 has a 135-hp advantage over the Polar 1788 Rolled Gunnel Flats 2005's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Polar 2310 Bay 2006 carries 87 gallons versus 19 gallons in the Polar 1788 Rolled Gunnel Flats 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Polar 2310 Bay 2006 is rated for 8 passengers, while the Polar 1788 Rolled Gunnel Flats 2005 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Polar 2310 Bay 2006 could be the deciding factor.
Bottom line: Choose the Polar 2310 Bay 2006 if your priority is putting more people on the water — it handles 8 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The Polar 1788 Rolled Gunnel Flats 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.