The ShearWater X22 2013 vs ShearWater Z 2000 2007 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 power gap is worth calling out. Rated to 300 hp, the ShearWater X22 2013 has a 150-hp advantage over the ShearWater Z 2000 2007'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 - 56 gal and 56 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.
Bottom line: Performance buyers should lean toward the ShearWater X22 2013 and its 300-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the ShearWater Z 2000 2007 with its 150-hp rating is the more economical daily driver.