When two boats share the same hull type — in this case both the Mako Boats 1801 Inshore 2007 and the Mako Boats 1901 Tunnel Inshore 2007 are modified vee designs with fiberglass 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 — Mako Boats 1801 Inshore 2007 at 17,0 ft versus Mako Boats 1901 Tunnel Inshore 2007 at 19,0 ft. Weight tells a clearer story for trailering families: the Mako Boats 1901 Tunnel Inshore 2007 tips the scales at 1 575 lbs — 1 561 lbs less than the Mako Boats 1801 Inshore 2007 at 14 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.
The power gap is worth calling out. Rated to 150 hp, the Mako Boats 1901 Tunnel Inshore 2007 has a 25-hp advantage over the Mako Boats 1801 Inshore 2007's 125-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mako Boats 1901 Tunnel Inshore 2007 carries 47 gallons versus 35 gallons in the Mako Boats 1801 Inshore 2007. 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 Mako Boats 1901 Tunnel Inshore 2007 is rated for 7 passengers, while the Mako Boats 1801 Inshore 2007 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mako Boats 1901 Tunnel Inshore 2007 could be the deciding factor.
Bottom line: Choose the Mako Boats 1901 Tunnel Inshore 2007 if your priority is putting more people on the water — it handles 7 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Mako Boats 1801 Inshore 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.