When two boats share the same hull type — in this case both the Supra Launch 21V 2008 and the Supra Sunsport 242 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?
Size is the most obvious dividing line here. The Supra Sunsport 242 2013 measures 24,1 feet overall (2013), giving it roughly 3,1 additional feet of deck space compared to the Supra Launch 21V 2008 at 21,0 feet (2008). At 34 lbs and 39 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 450 hp, the Supra Launch 21V 2008 has a 105-hp advantage over the Supra Sunsport 242 2013's 345-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Supra Sunsport 242 2013 carries 68 gallons versus 4 gallons in the Supra Launch 21V 2008. 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 Supra Sunsport 242 2013 is rated for 15 passengers, while the Supra Launch 21V 2008 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Supra Sunsport 242 2013 could be the deciding factor.
Bottom line: Choose the Supra Sunsport 242 2013 if your priority is putting more people on the water — it handles 15 passengers and at 24,1 ft it has the deck room to back that rating up comfortably. The Supra Launch 21V 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.