The Crestliner Fish Hawk 1650 WT 2013 is a deep-V design and the Crestliner Super Hawk 1800 2008 is a modified-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department - Crestliner Fish Hawk 1650 WT 2013 at 16,7 ft versus Crestliner Super Hawk 1800 2008 at 18,0 ft. Weight tells a clearer story for trailering families: the Crestliner Super Hawk 1800 2008 tips the scales at 1 470 lbs - 410 lbs less than the Crestliner Fish Hawk 1650 WT 2013 at 1 060 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 175 hp, the Crestliner Super Hawk 1800 2008 has a 85-hp advantage over the Crestliner Fish Hawk 1650 WT 2013'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 Crestliner Super Hawk 1800 2008 carries 33 gallons versus 20 gallons in the Crestliner Fish Hawk 1650 WT 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 Crestliner Super Hawk 1800 2008 is rated for 7 passengers, while the Crestliner Fish Hawk 1650 WT 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Super Hawk 1800 2008 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Crestliner Super Hawk 1800 2008 comes in at 8 lbs per hp versus 12 lbs per hp for the Crestliner Fish Hawk 1650 WT 2013. 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 Crestliner Super Hawk 1800 2008 if your priority is putting more people on the water - it handles 7 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Crestliner Fish Hawk 1650 WT 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.