Both the Crestliner CXJ 2070 CC 2008 and the Crestliner Retriever 1756 SC 2013 are modified-V designs, both built in aluminium, 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 - Crestliner CXJ 2070 CC 2008 at 20,0 ft versus Crestliner Retriever 1756 SC 2013 at 17,0 ft. Weight tells a clearer story for trailering families: the Crestliner CXJ 2070 CC 2008 tips the scales at 1 390 lbs - 660 lbs more than the Crestliner Retriever 1756 SC 2013 at 730 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 115 hp, the Crestliner CXJ 2070 CC 2008 has a 40-hp advantage over the Crestliner Retriever 1756 SC 2013's 75-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 21 gal and 19 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Crestliner CXJ 2070 CC 2008 is rated for 7 passengers, while the Crestliner Retriever 1756 SC 2013 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner CXJ 2070 CC 2008 could be the deciding factor.
Bottom line: Choose the Crestliner CXJ 2070 CC 2008 if your priority is putting more people on the water - it handles 7 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Crestliner Retriever 1756 SC 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.