The Carolina Skiff 2180 DLX 2008 is a flat-bottom design and the Carolina Skiff Ultra Elite Series 2013 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 - Carolina Skiff 2180 DLX 2008 at 20,0 ft versus Carolina Skiff Ultra Elite Series 2013 at 19,0 ft. Weight tells a clearer story for trailering families: the Carolina Skiff Ultra Elite Series 2013 tips the scales at 2 100 lbs - 517 lbs less than the Carolina Skiff 2180 DLX 2008 at 1 583 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 - 135 hp for the Carolina Skiff 2180 DLX 2008 and 150 hp for the Carolina Skiff Ultra Elite Series 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.
For family outings this is probably the sharpest distinction between the two. The Carolina Skiff 2180 DLX 2008 is rated for 16 passengers, while the Carolina Skiff Ultra Elite Series 2013 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Carolina Skiff 2180 DLX 2008 could be the deciding factor.
Bottom line: Choose the Carolina Skiff 2180 DLX 2008 if your priority is putting more people on the water - it handles 16 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Carolina Skiff Ultra Elite Series 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.