Both the Pro-Line 20 Express 2008 and the Pro-Line 21 cc 2011 are modified-V designs, both built in fibreglass, so 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 Express 2008 at 20,0 ft versus Pro-Line 21 cc 2011 at 21,7 ft. At 2 750 lbs and 2 700 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 power gap is worth calling out. Rated to 200 hp, the Pro-Line 20 Express 2008 has a 50-hp advantage over the Pro-Line 21 cc 2011's 150-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 70 gal and 70 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.