The Princecraft 20 ST 2004 vs Princecraft Vectra 21-2S 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 21-2S 2011 measures 21,5 feet overall (2011), giving it roughly 19,5 additional feet of deck space compared to the Princecraft 20 ST 2004 at 2,0 feet (2004). At 1 734 lbs and 1 698 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The Princecraft Vectra 21-2S 2011 tops out at 90 hp. Engine specs for the Princecraft 20 ST 2004 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 34 gal and 31 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Princecraft 20 ST 2004 is rated for 13 passengers, while the Princecraft Vectra 21-2S 2011 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft 20 ST 2004 could be the deciding factor.
Bottom line: Choose the Princecraft 20 ST 2004 if your priority is putting more people on the water — it handles 13 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Princecraft Vectra 21-2S 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.