Both the Triton Boats 18XS 2011 and the Triton Boats 192 Allure 2010 are modified-V designs, the first built in fibreglass and the second in composite, 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?
On paper these two are close siblings in the size department - Triton Boats 18XS 2011 at 18,7 ft versus Triton Boats 192 Allure 2010 at 19,0 ft. Weight tells a clearer story for trailering families: the Triton Boats 192 Allure 2010 tips the scales at 2 074 lbs - 384 lbs less than the Triton Boats 18XS 2011 at 1 690 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 - 135 hp for the Triton Boats 18XS 2011 and 135 hp for the Triton Boats 192 Allure 2010. 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 2011 carries 44 gallons versus 40 gallons in the Triton Boats 192 Allure 2010. 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 2011 is rated for 600 passengers, while the Triton Boats 192 Allure 2010 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Triton Boats 18XS 2011 could be the deciding factor.
Bottom line: Choose the Triton Boats 18XS 2011 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 192 Allure 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.