Both the Crestliner Grand Cayman 2385 2009 and the Crestliner Sport Classic 1685 2008 are pontoon 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?
Size is the most obvious dividing line here. The Crestliner Grand Cayman 2385 2009 measures 22,0 feet overall (2009), giving it roughly 6,0 additional feet of deck space compared to the Crestliner Sport Classic 1685 2008 at 16,0 feet (2008). Weight tells a clearer story for trailering families: the Crestliner Grand Cayman 2385 2009 tips the scales at 2 150 lbs - 575 lbs more than the Crestliner Sport Classic 1685 2008 at 1 575 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 150 hp, the Crestliner Grand Cayman 2385 2009 has a 100-hp advantage over the Crestliner Sport Classic 1685 2008's 50-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Crestliner Grand Cayman 2385 2009 is rated for 12 passengers, while the Crestliner Sport Classic 1685 2008 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2385 2009 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2385 2009 if your priority is putting more people on the water - it handles 12 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The Crestliner Sport Classic 1685 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.