The Starcraft Marine C-Star 166 SC 2005 vs Starcraft Marine Sport Runabout 172 OB Sport 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 — Starcraft Marine C-Star 166 SC 2005 at 16,0 ft versus Starcraft Marine Sport Runabout 172 OB Sport 2013 at 16,8 ft. Weight tells a clearer story for trailering families: the Starcraft Marine C-Star 166 SC 2005 tips the scales at 1 097 lbs — 945 lbs more than the Starcraft Marine Sport Runabout 172 OB Sport 2013 at 152 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.

Both boats share a closely matched power ceiling — 125 hp for the Starcraft Marine C-Star 166 SC 2005 and 130 hp for the Starcraft Marine Sport Runabout 172 OB Sport 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Starcraft Marine C-Star 166 SC 2005 carries 32 gallons versus 23 gallons in the Starcraft Marine Sport Runabout 172 OB Sport 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Starcraft Marine Sport Runabout 172 OB Sport 2013 is rated for 8 passengers, while the Starcraft Marine C-Star 166 SC 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine Sport Runabout 172 OB Sport 2013 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Starcraft Marine Sport Runabout 172 OB Sport 2013 comes in at 1 lbs per hp versus 9 lbs per hp for the Starcraft Marine C-Star 166 SC 2005. 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.