When two boats share the same hull type — in this case both the Robalo R240 2009 and the Robalo R247 2009 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 Robalo R240 2009 and 400 hp for the Robalo R247 2009. 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 Robalo R240 2009 carries 175 gallons versus 15 gallons in the Robalo R247 2009. 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 Robalo R240 2009 is rated for 12 passengers, while the Robalo R247 2009 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Robalo R240 2009 could be the deciding factor.