Matching a modified vee Riviera Yachts 51 Enclosed Flybridge SII 2008 against a deep vee Riviera Yachts 51 Enclosed Flybridge SII 2011 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.

On paper these two are close siblings in the size department — Riviera Yachts 51 Enclosed Flybridge SII 2008 at 54,0 ft versus Riviera Yachts 51 Enclosed Flybridge SII 2011 at 54,7 ft. At 4 806 lbs and 4 806 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 1 650 hp, the Riviera Yachts 51 Enclosed Flybridge SII 2008 has a 825-hp advantage over the Riviera Yachts 51 Enclosed Flybridge SII 2011's 825-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Riviera Yachts 51 Enclosed Flybridge SII 2011 carries 977 gallons versus 713 gallons in the Riviera Yachts 51 Enclosed Flybridge SII 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 16 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.