Matching a deep vee Triton Boats 177 2008 against a modified vee Triton Boats 18XS 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Both boats share a closely matched power ceiling — 150 hp for the Triton Boats 177 2008 and 135 hp for the Triton Boats 18XS 2013. 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 Triton Boats 18XS 2013 carries 44 gallons versus 37 gallons in the Triton Boats 177 2008. 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 Triton Boats 18XS 2013 is rated for 600 passengers, while the Triton Boats 177 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Triton Boats 18XS 2013 could be the deciding factor.
Bottom line: Choose the Triton Boats 18XS 2013 if your priority is putting more people on the water — it handles 600 passengers and at 18,7 ft it has the deck room to back that rating up comfortably. The Triton Boats 177 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.