The Princecraft 161 L 2006 vs Princecraft Vectra 21-4S 2011 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 Princecraft Vectra 21-4S 2011 measures 21,5 feet overall (2011), giving it roughly 5,5 additional feet of deck space compared to the Princecraft 161 L 2006 at 16,0 feet (2006). Weight tells a clearer story for trailering families: the Princecraft Vectra 21-4S 2011 tips the scales at 1 748 lbs — 500 lbs less than the Princecraft 161 L 2006 at 1 248 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 90 hp, the Princecraft Vectra 21-4S 2011 has a 40-hp advantage over the Princecraft 161 L 2006's 50-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 Princecraft Vectra 21-4S 2011 is rated for 8 passengers, while the Princecraft 161 L 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft Vectra 21-4S 2011 could be the deciding factor.
Bottom line: Choose the Princecraft Vectra 21-4S 2011 if your priority is putting more people on the water — it handles 8 passengers and at 21,5 ft it has the deck room to back that rating up comfortably. The Princecraft 161 L 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.