When two boats share the same hull type — in this case both the G3 Boats Guide V170 T 2008 and the G3 Boats V172 T 2009 are deep vee designs with aluminum 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?

On paper these two are close siblings in the size department — G3 Boats Guide V170 T 2008 at 16,0 ft versus G3 Boats V172 T 2009 at 17,0 ft. At 114 lbs and 123 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.

Both boats share a closely matched power ceiling — 70 hp for the G3 Boats Guide V170 T 2008 and 75 hp for the G3 Boats V172 T 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 G3 Boats V172 T 2009 carries 33 gallons versus 22 gallons in the G3 Boats Guide V170 T 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 5 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

At this size, power-to-weight ratio matters more than outright horsepower. The G3 Boats V172 T 2009 comes in at 2 lbs per hp versus 2 lbs per hp for the G3 Boats Guide V170 T 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.