The Supra Launch SS 2004 vs Supra Sunsport 21V 2010 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.
The Supra Sunsport 21V 2010 tops out at 325 hp. Engine specs for the Supra Launch SS 2004 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Supra Sunsport 21V 2010 carries 52 gallons versus 34 gallons in the Supra Launch SS 2004. 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 21V 2010 is rated for 14 passengers, while the Supra Launch SS 2004 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Supra Sunsport 21V 2010 could be the deciding factor.
Bottom line: Choose the Supra Sunsport 21V 2010 if your priority is putting more people on the water — it handles 14 passengers and at 21,3 ft it has the deck room to back that rating up comfortably. The Supra Launch SS 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.