The Tige 21i 2005 vs Tige Z1 2013 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.
On paper these two are close siblings in the size department - Tige 21i 2005 at 21,0 ft versus Tige Z1 2013 at 21,0 ft. Weight tells a clearer story for trailering families: the Tige 21i 2005 tips the scales at 3 880 lbs - 166 lbs more than the Tige Z1 2013 at 3 714 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.
The power gap is worth calling out. Rated to 434 hp, the Tige Z1 2013 has a 54-hp advantage over the Tige 21i 2005's 380-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 36 gal and 38 gal - so range won't be a tiebreaker here.
Both boats are rated for 10 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 Tige Z1 2013 and its 434-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Tige 21i 2005 with its 380-hp rating is the more economical daily driver.