The Pro-Line 20 Sport 2007 vs Pro-Line 23 Bay 2009 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 Pro-Line 23 Bay 2009 measures 23,0 feet overall (2009), giving it roughly 21,0 additional feet of deck space compared to the Pro-Line 20 Sport 2007 at 2,0 feet (2007). Weight tells a clearer story for trailering families: the Pro-Line 23 Bay 2009 tips the scales at 345 lbs — 319 lbs less than the Pro-Line 20 Sport 2007 at 26 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 300 hp, the Pro-Line 23 Bay 2009 has a 100-hp advantage over the Pro-Line 20 Sport 2007's 200-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 7 gal and 8 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Pro-Line 23 Bay 2009 is rated for 7 passengers, while the Pro-Line 20 Sport 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Pro-Line 23 Bay 2009 could be the deciding factor.
Bottom line: Choose the Pro-Line 23 Bay 2009 if your priority is putting more people on the water — it handles 7 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Pro-Line 20 Sport 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.