Matching a deep vee Tiara Yachts 3900 Convertible 2008 against a modified vee Tiara Yachts 3900 Open 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.

On paper these two are close siblings in the size department — Tiara Yachts 3900 Convertible 2008 at 39,0 ft versus Tiara Yachts 3900 Open 2009 at 39,0 ft. Weight tells a clearer story for trailering families: the Tiara Yachts 3900 Convertible 2008 tips the scales at 30 125 lbs — 29 880 lbs more than the Tiara Yachts 3900 Open 2009 at 245 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 600 hp, the Tiara Yachts 3900 Open 2009 has a 25-hp advantage over the Tiara Yachts 3900 Convertible 2008's 575-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Tiara Yachts 3900 Open 2009 carries 535 gallons versus 475 gallons in the Tiara Yachts 3900 Convertible 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 12 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.