Matching a modified vee Pro-Line 21 cc 2013 against a deep vee Pro-Line 24 Super Sport 2008 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Pro-Line 21 cc 2013 at 21,7 ft versus Pro-Line 24 Super Sport 2008 at 24,0 ft. At 27 lbs and 34 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 300 hp, the Pro-Line 24 Super Sport 2008 has a 150-hp advantage over the Pro-Line 21 cc 2013's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Pro-Line 24 Super Sport 2008 carries 14 gallons versus 7 gallons in the Pro-Line 21 cc 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Pro-Line 24 Super Sport 2008 is rated for 7 passengers, while the Pro-Line 21 cc 2013 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 24 Super Sport 2008 could be the deciding factor.
Bottom line: Choose the Pro-Line 24 Super Sport 2008 if your priority is putting more people on the water — it handles 7 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Pro-Line 21 cc 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.