When two boats share the same hull type — in this case both the Key West 1520 CC 2007 and the Key West 198 SK 2013 are modified vee designs with fiberglass 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?
Size is the most obvious dividing line here. The Key West 198 SK 2013 measures 19,0 feet overall (2013), giving it roughly 4,0 additional feet of deck space compared to the Key West 1520 CC 2007 at 15,0 feet (2007). At 95 lbs and 135 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 140 hp, the Key West 198 SK 2013 has a 60-hp advantage over the Key West 1520 CC 2007's 80-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 2 gal and 3 gal — so range won't be a tiebreaker here.
The Key West 1520 CC 2007 is rated for up to 4 people. Passenger data for the Key West 198 SK 2013 wasn't available.
Bottom line: The Key West 198 SK 2013 at 19,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Key West 1520 CC 2007 at 15,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.