When two boats share the same hull type — in this case both the Ranger 618T 2010 and the Ranger Z118 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?
On paper these two are close siblings in the size department — Ranger 618T 2010 at 18,3 ft versus Ranger Z118 2013 at 18,7 ft. Weight tells a clearer story for trailering families: the Ranger Z118 2013 tips the scales at 155 lbs — 139 lbs less than the Ranger 618T 2010 at 16 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 150 hp, the Ranger Z118 2013 has a 60-hp advantage over the Ranger 618T 2010's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 33 gal and 33 gal — so range won't be a tiebreaker here.
Both boats are rated for 5 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 Ranger Z118 2013 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Ranger 618T 2010 with its 90-hp rating is the more economical daily driver.