When two boats share the same hull type — in this case both the Malibu FXi 2009 and the Malibu Sunsetter 21 XTi 2006 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?

Both boats share a closely matched power ceiling — 400 hp for the Malibu FXi 2009 and 400 hp for the Malibu Sunsetter 21 XTi 2006. 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. Both carry nearly identical fuel loads — 46 gal and 46 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Malibu Sunsetter 21 XTi 2006 is rated for 12 passengers, while the Malibu FXi 2009 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Malibu Sunsetter 21 XTi 2006 could be the deciding factor.