Both the Malibu Sunscape 247 LSV 2012 and the Malibu Sunsetter 21 XTi 2005 are modified-V designs, 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 Malibu Sunscape 247 LSV 2012 measures 24,6 feet overall (2012), giving it roughly 3,6 additional feet of deck space compared to the Malibu Sunsetter 21 XTi 2005 at 21,0 feet (2005). Weight tells a clearer story for trailering families: the Malibu Sunscape 247 LSV 2012 tips the scales at 4 000 lbs - 700 lbs more than the Malibu Sunsetter 21 XTi 2005 at 3 300 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 - 410 hp for the Malibu Sunscape 247 LSV 2012 and 400 hp for the Malibu Sunsetter 21 XTi 2005. 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. Fuel capacity breaks the other way: the Malibu Sunscape 247 LSV 2012 carries 84 gallons versus 46 gallons in the Malibu Sunsetter 21 XTi 2005. 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 Malibu Sunscape 247 LSV 2012 is rated for 17 passengers, while the Malibu Sunsetter 21 XTi 2005 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Malibu Sunscape 247 LSV 2012 could be the deciding factor.
Bottom line: Choose the Malibu Sunscape 247 LSV 2012 if your priority is putting more people on the water - it handles 17 passengers and at 24,6 ft it has the deck room to back that rating up comfortably. The Malibu Sunsetter 21 XTi 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 12 that costs less to run day-to-day.