When two boats share the same hull type — in this case both the Livingston Model 19 2010 and the Livingston Model 9 2011 are catamaran 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?
Size is the most obvious dividing line here. The Livingston Model 19 2010 measures 18,5 feet overall (2010), giving it roughly 9,5 additional feet of deck space compared to the Livingston Model 9 2011 at 9,0 feet (2011). At 15 lbs and 16 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.
The power gap is worth calling out. Rated to 90 hp, the Livingston Model 19 2010 has a 82-hp advantage over the Livingston Model 9 2011's 8-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Livingston Model 19 2010 is rated for 8 passengers, while the Livingston Model 9 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Livingston Model 19 2010 could be the deciding factor.
Bottom line: Choose the Livingston Model 19 2010 if your priority is putting more people on the water — it handles 8 passengers and at 18,5 ft it has the deck room to back that rating up comfortably. The Livingston Model 9 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.