When two boats share the same hull type — in this case both the Kayot S225 2006 and the Kayot Z220 2009 are modified vee designs with composite 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 — Kayot S225 2006 at 22,0 ft versus Kayot Z220 2009 at 21,0 ft. Weight tells a clearer story for trailering families: the Kayot Z220 2009 tips the scales at 395 lbs — 353 lbs less than the Kayot S225 2006 at 42 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 — 320 hp for the Kayot S225 2006 and 320 hp for the Kayot Z220 2009. 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. Fuel capacity breaks the other way: the Kayot S225 2006 carries 57 gallons versus 5 gallons in the Kayot Z220 2009. 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 Kayot S225 2006 is rated for 14 passengers, while the Kayot Z220 2009 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Kayot S225 2006 could be the deciding factor.