The Four Winns 310 Horizon 2007 vs Four Winns HD1 RS 2021 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 Four Winns 310 Horizon 2007 measures 31,0 feet overall (2007), giving it roughly 12,4 additional feet of deck space compared to the Four Winns HD1 RS 2021 at 18,6 feet (2021). Weight tells a clearer story for trailering families: the Four Winns HD1 RS 2021 tips the scales at 3 000 lbs — 2 926 lbs less than the Four Winns 310 Horizon 2007 at 74 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 Four Winns HD1 RS 2021 tops out at 250 hp. Engine specs for the Four Winns 310 Horizon 2007 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Four Winns HD1 RS 2021 carries 32 gallons versus 13 gallons in the Four Winns 310 Horizon 2007. 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 Four Winns 310 Horizon 2007 is rated for 9 passengers, while the Four Winns HD1 RS 2021 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Four Winns 310 Horizon 2007 could be the deciding factor.
Bottom line: Choose the Four Winns 310 Horizon 2007 if your priority is putting more people on the water — it handles 9 passengers and at 31,0 ft it has the deck room to back that rating up comfortably. The Four Winns HD1 RS 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.