When two boats share the same hull type — in this case both the Key West 186 CC 2008 and the Key West 210 LS 2008 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 — Key West 186 CC 2008 at 18,0 ft versus Key West 210 LS 2008 at 21,0 ft. Weight tells a clearer story for trailering families: the Key West 186 CC 2008 tips the scales at 165 lbs — 140 lbs more than the Key West 210 LS 2008 at 25 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 200 hp, the Key West 210 LS 2008 has a 50-hp advantage over the Key West 186 CC 2008's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Key West 210 LS 2008 carries 49 gallons versus 4 gallons in the Key West 186 CC 2008. 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 Key West 210 LS 2008 is rated for 6 passengers, while the Key West 186 CC 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Key West 210 LS 2008 could be the deciding factor.
Bottom line: Choose the Key West 210 LS 2008 if your priority is putting more people on the water — it handles 6 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Key West 186 CC 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.