The Crest Crest II LM Model 18 2004 vs Crest II 20 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.
On paper these two are close siblings in the size department - Crest Crest II LM Model 18 2004 at 18,0 ft versus Crest II 20 2007 at 20,0 ft. Weight tells a clearer story for trailering families: the Crest II 20 2007 tips the scales at 2 302 lbs - 282 lbs less than the Crest Crest II LM Model 18 2004 at 2 020 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 100 hp, the Crest II 20 2007 has a 25-hp advantage over the Crest Crest II LM Model 18 2004's 75-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 11 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 Crest II 20 2007 and its 100-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Crest Crest II LM Model 18 2004 with its 75-hp rating is the more economical daily driver.