When two boats share the same hull type — in this case both the Champion Boats 186 Coastal Champ 2006 and the Champion Boats 188 CX 2008 are modified vee designs with composite 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 — Champion Boats 186 Coastal Champ 2006 at 18,0 ft versus Champion Boats 188 CX 2008 at 18,0 ft. Weight tells a clearer story for trailering families: the Champion Boats 188 CX 2008 tips the scales at 185 lbs — 166 lbs less than the Champion Boats 186 Coastal Champ 2006 at 19 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 — 200 hp for the Champion Boats 186 Coastal Champ 2006 and 200 hp for the Champion Boats 188 CX 2008. 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 Champion Boats 186 Coastal Champ 2006 carries 32 gallons versus 5 gallons in the Champion Boats 188 CX 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 Champion Boats 186 Coastal Champ 2006 is rated for 6 passengers, while the Champion Boats 188 CX 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Champion Boats 186 Coastal Champ 2006 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Champion Boats 186 Coastal Champ 2006 comes in at 0 lbs per hp versus 1 lbs per hp for the Champion Boats 188 CX 2008. 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.
Bottom line: Choose the Champion Boats 186 Coastal Champ 2006 if your priority is putting more people on the water — it handles 6 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Champion Boats 188 CX 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.