Matching a flat Lund 1648M Jon 2011 against a modified vee Lund 1850 Tyee 2005 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Lund 1648M Jon 2011 at 15,8 ft versus Lund 1850 Tyee 2005 at 18,0 ft. At 42 lbs and 18 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 200 hp, the Lund 1850 Tyee 2005 has a 165-hp advantage over the Lund 1648M Jon 2011's 35-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 Lund 1850 Tyee 2005 is rated for 8 passengers, while the Lund 1648M Jon 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund 1850 Tyee 2005 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Lund 1850 Tyee 2005 comes in at 0 lbs per hp versus 1 lbs per hp for the Lund 1648M Jon 2011. 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.
Bottom line: Choose the Lund 1850 Tyee 2005 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Lund 1648M Jon 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.