When two boats share the same hull type — in this case both the Premier Boats Grand Isle 275 2010 and the Premier Boats SunSation LTD 250 RE 2010 are pontoon designs with aluminum 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?
Size is the most obvious dividing line here. The Premier Boats Grand Isle 275 2010 measures 29,2 feet overall (2010), giving it roughly 4,2 additional feet of deck space compared to the Premier Boats SunSation LTD 250 RE 2010 at 25,0 feet (2010). Weight tells a clearer story for trailering families: the Premier Boats SunSation LTD 250 RE 2010 tips the scales at 295 lbs — 259 lbs less than the Premier Boats Grand Isle 275 2010 at 36 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 — 150 hp for the Premier Boats Grand Isle 275 2010 and 150 hp for the Premier Boats SunSation LTD 250 RE 2010. 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. Fuel capacity breaks the other way: the Premier Boats Grand Isle 275 2010 carries 29 gallons versus 3 gallons in the Premier Boats SunSation LTD 250 RE 2010. 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 Premier Boats Grand Isle 275 2010 is rated for 16 passengers, while the Premier Boats SunSation LTD 250 RE 2010 caps at 14. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Premier Boats Grand Isle 275 2010 could be the deciding factor.
One place where both boats are genuinely identical is tube construction: both run 23 aluminum tubes at 25" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.
Bottom line: Choose the Premier Boats Grand Isle 275 2010 if your priority is putting more people on the water — it handles 16 passengers and at 29,2 ft it has the deck room to back that rating up comfortably. The Premier Boats SunSation LTD 250 RE 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 14 that costs less to run day-to-day.