The Triton Boats 1546 MRV 2005 vs Triton Boats TR-18 SE 2010 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 Triton Boats TR-18 SE 2010 measures 18,5 feet overall (2010), giving it roughly 3,5 additional feet of deck space compared to the Triton Boats 1546 MRV 2005 at 15,0 feet (2005). Weight tells a clearer story for trailering families: the Triton Boats 1546 MRV 2005 tips the scales at 338 lbs — 325 lbs more than the Triton Boats TR-18 SE 2010 at 13 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 — 30 hp for the Triton Boats 1546 MRV 2005 and 15 hp for the Triton Boats TR-18 SE 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.
For family outings this is probably the sharpest distinction between the two. The Triton Boats TR-18 SE 2010 is rated for 550 passengers, while the Triton Boats 1546 MRV 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Triton Boats TR-18 SE 2010 could be the deciding factor.
Bottom line: Choose the Triton Boats TR-18 SE 2010 if your priority is putting more people on the water — it handles 550 passengers and at 18,5 ft it has the deck room to back that rating up comfortably. The Triton Boats 1546 MRV 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.