When two boats share the same hull type — in this case both the Pro-Line 20 cc 2011 and the Pro-Line 21 cc 2013 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 — Pro-Line 20 cc 2011 at 20,5 ft versus Pro-Line 21 cc 2013 at 21,7 ft. Weight tells a clearer story for trailering families: the Pro-Line 20 cc 2011 tips the scales at 2 115 lbs — 2 088 lbs more than the Pro-Line 21 cc 2013 at 27 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.

Both boats share a closely matched power ceiling — 150 hp for the Pro-Line 20 cc 2011 and 150 hp for the Pro-Line 21 cc 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 7 gal and 7 gal — so range won't be a tiebreaker here.

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.