The Scout 170 Costa 2007 vs Scout 187 Dorado 2009 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 — Scout 170 Costa 2007 at 16,0 ft versus Scout 187 Dorado 2009 at 18,0 ft. At 78 lbs and 145 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 150 hp, the Scout 187 Dorado 2009 has a 60-hp advantage over the Scout 170 Costa 2007's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Scout 187 Dorado 2009 carries 44 gallons versus 3 gallons in the Scout 170 Costa 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

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.

At this size, power-to-weight ratio matters more than outright horsepower. The Scout 170 Costa 2007 comes in at 1 lbs per hp versus 1 lbs per hp for the Scout 187 Dorado 2009. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.