When two boats share the same hull type — in this case both the Landau Harbor 20 Cruise 2012 and the Landau Limited Edition 18 Cruise 2008 are pontoon 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?
Size is the most obvious dividing line here. The Landau Limited Edition 18 Cruise 2008 measures 18,0 feet overall (2008), giving it roughly 16,0 additional feet of deck space compared to the Landau Harbor 20 Cruise 2012 at 2,0 feet (2012). Weight tells a clearer story for trailering families: the Landau Harbor 20 Cruise 2012 tips the scales at 1 699 lbs — 378 lbs more than the Landau Limited Edition 18 Cruise 2008 at 1 321 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 — 90 hp for the Landau Harbor 20 Cruise 2012 and 75 hp for the Landau Limited Edition 18 Cruise 2008. 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.
For family outings this is probably the sharpest distinction between the two. The Landau Harbor 20 Cruise 2012 is rated for 8 passengers, while the Landau Limited Edition 18 Cruise 2008 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Landau Harbor 20 Cruise 2012 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Landau Limited Edition 18 Cruise 2008 comes in at 18 lbs per hp versus 19 lbs per hp for the Landau Harbor 20 Cruise 2012. 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.
Both are 23-tube and 2-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity — more so than most buyers realize when comparing on paper.
Bottom line: Choose the Landau Harbor 20 Cruise 2012 if your priority is putting more people on the water — it handles 8 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Landau Limited Edition 18 Cruise 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.