Tiara Yachts 56 LS

The Tiara 56 LS is 56' 2" overall with its integrated platform, on a 16' 0" beam, and draws 4' 0". Dry weight is 39,600 lbs. Power is four Mercury 600 Verado V12 outboards - 2,400 HP on the transom - turning Verado 27.5 propellers through the engine's two-speed transmission. Fuel is 1,000 US gallons, fresh water 150 and the holding tank 60. Deadrise at the transom is 21 degrees, and the hardtop stands 11' 0" above the waterline. It is the largest outboard-powered boat Tiara has built.

The deck is the reason to look at this boat. It walks around completely, and pilot house doors to port and starboard of the helm mean you step out of the driving seat straight onto the side deck and forward to the bow lounge without going through anyone's conversation. Twin terraces fold down to widen the cockpit and open it to the water.

Like the rest of the current range, the aft cockpit is a module chosen at order - an adventure setup aimed at fishing, or a lounge and galley setup aimed at entertaining - so the working end of the boat matches how you use it. Multiple social zones and the galley keep the crowd on deck rather than down in the cabin.

Below deck are two staterooms and two private heads, sleeping four. The Garmin marine navigation package is integrated at the helm.

The 56 LS was tested on Biscayne Bay at Coconut Grove, Florida on 18 February 2025 in a 10-knot easterly and a foot of chop, with all tanks full, three aboard and a weight as tested of 51,350 lbs. Wide open throttle is 54.4 mph - 47.3 knots - at 6,000 rpm on 206.5 gph. Idle to 30 mph takes 10.1 seconds.

The interesting part of the sheet is the top of the cruise band. At 4,000 rpm the boat runs 33.6 mph on 92.8 gph for 283 nautical miles. At 5,000 rpm it runs 44.4 mph on 127.7 gph for 272. Ten and a half extra miles an hour costs eleven nautical miles of range, which is why the 1,000-gallon tank matters more on this boat than the raw top speed does: it buys you the option to use the speed.

Sound at the helm is 70.9 dB(A) at 4,000 rpm, rising to 76.4 at wide open throttle - a quad-outboard result that owes as much to the hull and hardtop as to Mercury's sound-dampening on the V12.

Transom deadrise is 21 degrees, a full seven degrees more vee than Tiara's inboard EX boats carry. That is the specification to hold onto when you compare this to a soft-riding cruiser: the 56 LS is drawn to take a chop at 40-plus, and the trade is a hull that leans on its power to stay on plane rather than loafing efficiently at 12 knots. Range figures on the sheet are Tiara's own, computed on 90% of total fuel.

Two staterooms, two private heads, four sleeping. On a 56-footer that is a deliberate choice, and it is what the outboard architecture buys: the volume that would go to a third cabin and an engine room goes to living space and to the 1,000-gallon tank instead.

The accommodation sits below the pilot house, reached from a helm deck that stays open to the cockpit through doors on both sides. Both cabins have their own head, so the second couple aboard is not sharing - the arrangement that decides whether a boat this size actually gets used for weekends away.

Above deck, the galley anchors a run of social zones that carries from the bow lounge, through the pilot house, to a cockpit that opens outboard on both terraces. If you take the entertaining module, the aft end becomes a lounge and buffet; if you take the adventure module, it becomes a fishing cockpit. That is a change to how the boat lives, not a trim option.

Tiara's virtual tour walks the whole interior and is the fastest way to judge finish and volume before you travel to see a hull.

The most direct comparison for the 56 LS runs on the same engines. The Scout 530 LXF is 53' 5" and takes the identical quad Mercury 600 V12 package - and it is the faster boat with it, published at 70.1 mph against the Tiara's 54.4. What the 56 LS does with the same 2,400 HP is carry more boat: sixteen inches more beam, 125 more gallons of fuel, and two staterooms with two private heads below against the Scout's two cabins and one head. Anyone shopping big luxury outboards at this length will drive both, and the two sheets make the trade explicit.

Inside the range, the honest fork is the Tiara EX 54. Two feet shorter, twin Volvo Penta IPS2-950 diesel pods, three staterooms, 650 gallons and 38.7 mph. The 56 LS trades a cabin for 16 more miles an hour, 350 more gallons and outboards you can service at any dock. Neither is the upgrade of the other.

The Sunseeker Superhawk 55 is the inboard European at almost exactly the same length - 56' 2" - and it makes the case for pods and a fully enclosed lower deck. It is the boat to see if the walk-around deck is not what you are buying.

Where the 56 LS argues is the combination nobody else at this length puts together: outboard simplicity and a 1,000-gallon tank, a full walk-around with pilot house doors, and a published test sheet that shows what it does at every 500 rpm.

This boat fits the owner who wants outboards at 56 feet and refuses to camp. Four engines you can service on any lift, two cabins with their own heads, and 1,000 gallons under the sole - that is a boat you take somewhere and stay on, not a day boat with a berth in it.

It fits someone who runs the boat from the helm and still wants to be part of the day. Pilot house doors to port and starboard, a walk-around deck and a bow lounge mean the driver is three steps from everyone else the entire time.

It fits a buyer who genuinely uses both modes. The adventure module makes a fishing cockpit; the entertaining module makes a lounge and buffet. Choose at order, because the module defines the aft third of the boat.

It does not fit a family that needs three cabins. Two staterooms and two heads is the layout, and the Tiara EX 54 is the shorter boat with the extra one.

It does not fit an owner shopping on fuel burn. Cruise is 92.8 gph at 33.6 mph and 127.7 gph at 44.4 - that is what 2,400 HP costs, and the 1,000-gallon tank exists to make it usable. Run your own numbers off the published sheet before you set a season's budget, and get observed burn at your intended rpm in writing at sea trial.