Matching a flat Xpress Bayou 18 2013 against a modified vee Xpress SV20SC 2009 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.
Size is the most obvious dividing line here. The Xpress Bayou 18 2013 measures 18,0 feet overall (2013), giving it roughly 16,0 additional feet of deck space compared to the Xpress SV20SC 2009 at 2,0 feet (2009). At 75 lbs and 119 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 115 hp, the Xpress SV20SC 2009 has a 65-hp advantage over the Xpress Bayou 18 2013's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 5 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
At this size, power-to-weight ratio matters more than outright horsepower. The Xpress SV20SC 2009 comes in at 1 lbs per hp versus 2 lbs per hp for the Xpress Bayou 18 2013. 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.
Bottom line: The Xpress Bayou 18 2013 at 18,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Xpress SV20SC 2009 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.