When two boats share the same hull type — in this case both the Lund 1600 Pro Sport OB 2005 and the Lund Classic 1775 SS 2006 are modified vee 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?

On paper these two are close siblings in the size department — Lund 1600 Pro Sport OB 2005 at 16,0 ft versus Lund Classic 1775 SS 2006 at 17,0 ft. Weight tells a clearer story for trailering families: the Lund 1600 Pro Sport OB 2005 tips the scales at 971 lbs — 876 lbs more than the Lund Classic 1775 SS 2006 at 95 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 — 90 hp for the Lund 1600 Pro Sport OB 2005 and 90 hp for the Lund Classic 1775 SS 2006. 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. Both carry nearly identical fuel loads — 19 gal and 19 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Lund Classic 1775 SS 2006 is rated for 6 passengers, while the Lund 1600 Pro Sport OB 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund Classic 1775 SS 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Lund Classic 1775 SS 2006 comes in at 1 lbs per hp versus 11 lbs per hp for the Lund 1600 Pro Sport OB 2005. 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.