The Manitou Pontoons 18 Aurora 2006 vs Manitou Pontoons 20 Oasis 2009 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Manitou Pontoons 18 Aurora 2006 measures 16,0 feet overall (2006), giving it roughly 14,0 additional feet of deck space compared to the Manitou Pontoons 20 Oasis 2009 at 2,0 feet (2009). Weight tells a clearer story for trailering families: the Manitou Pontoons 20 Oasis 2009 tips the scales at 248 lbs — 106 lbs less than the Manitou Pontoons 18 Aurora 2006 at 142 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.
The power gap is worth calling out. Rated to 175 hp, the Manitou Pontoons 20 Oasis 2009 has a 115-hp advantage over the Manitou Pontoons 18 Aurora 2006's 60-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 Manitou Pontoons 18 Aurora 2006 is rated for 9 passengers, while the Manitou Pontoons 20 Oasis 2009 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Manitou Pontoons 18 Aurora 2006 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Manitou Pontoons 20 Oasis 2009 comes in at 1 lbs per hp versus 2 lbs per hp for the Manitou Pontoons 18 Aurora 2006. 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.
The Manitou Pontoons 18 Aurora 2006 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Manitou Pontoons 20 Oasis 2009 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: Choose the Manitou Pontoons 18 Aurora 2006 if your priority is putting more people on the water — it handles 9 passengers and at 16,0 ft it has the deck room to back that rating up comfortably. The Manitou Pontoons 20 Oasis 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.