The MirroCraft 1845 Dual Impact 2005 vs MirroCraft 4656-O 2012 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.
The power gap is worth calling out. Rated to 150 hp, the MirroCraft 1845 Dual Impact 2005 has a 125-hp advantage over the MirroCraft 4656-O 2012's 25-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 MirroCraft 1845 Dual Impact 2005 is rated for 7 passengers, while the MirroCraft 4656-O 2012 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the MirroCraft 1845 Dual Impact 2005 could be the deciding factor.
Bottom line: Choose the MirroCraft 1845 Dual Impact 2005 if your priority is putting more people on the water — it handles 7 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The MirroCraft 4656-O 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.