The Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 vs Princecraft Sport 164 WS 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.
On paper these two are close siblings in the size department — Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 at 18,0 ft versus Princecraft Sport 164 WS 2012 at 16,5 ft. Weight tells a clearer story for trailering families: the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 tips the scales at 2 445 lbs — 1 437 lbs more than the Princecraft Sport 164 WS 2012 at 1 008 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 220 hp, the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 has a 130-hp advantage over the Princecraft Sport 164 WS 2012's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 carries 6 gallons versus 2 gallons in the Princecraft Sport 164 WS 2012. 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 Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 is rated for 8 passengers, while the Princecraft Sport 164 WS 2012 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 comes in at 11 lbs per hp versus 11 lbs per hp for the Princecraft Sport 164 WS 2012. 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 Princecraft Fish n' Promenade SP 186 FNP I/O SE 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 Princecraft Sport 164 WS 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.