Both the Polar 2100 DC 2008 and the Polar 2300 CC 2009 are modified-V designs, both built in composite, so 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 - Polar 2100 DC 2008 at 21,0 ft versus Polar 2300 CC 2009 at 23,3 ft. Weight tells a clearer story for trailering families: the Polar 2300 CC 2009 tips the scales at 3 500 lbs - 500 lbs less than the Polar 2100 DC 2008 at 3 000 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 300 hp, the Polar 2300 CC 2009 has a 50-hp advantage over the Polar 2100 DC 2008's 250-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Polar 2300 CC 2009 carries 150 gallons versus 97 gallons in the Polar 2100 DC 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 8 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: The Polar 2300 CC 2009 at 23,3 ft is the right call if deck space, comfort, and entertaining are top of your list. The Polar 2100 DC 2008 at 21,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.