Detailed Evaluation & Buyer Recommendation
Tiara Yachts 3100 Coronet 2012 vs Tiara Yachts 3800 Open 2009 — Same Brand, Different Boat
Matching a deep vee Tiara Yachts 3100 Coronet 2012 against a modified vee Tiara Yachts 3800 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.
Size is the most obvious dividing line here. The Tiara Yachts 3800 Open 2009 measures 38,0 feet overall (2009), giving it roughly 4,9 additional feet of deck space compared to the Tiara Yachts 3100 Coronet 2012 at 33,1 feet (2012). Weight tells a clearer story for trailering families: the Tiara Yachts 3100 Coronet 2012 tips the scales at 1 355 lbs — 1 129 lbs more than the Tiara Yachts 3800 Open 2009 at 226 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 490 hp, the Tiara Yachts 3800 Open 2009 has a 115-hp advantage over the Tiara Yachts 3100 Coronet 2012's 375-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 3800 Open 2009 carries 411 gallons versus 21 gallons in the Tiara Yachts 3100 Coronet 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Tiara Yachts 3800 Open 2009 is rated for 12 passengers, while the Tiara Yachts 3100 Coronet 2012 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Tiara Yachts 3800 Open 2009 could be the deciding factor.
Bottom line: Choose the Tiara Yachts 3800 Open 2009 if your priority is putting more people on the water — it handles 12 passengers and at 38,0 ft it has the deck room to back that rating up comfortably. The Tiara Yachts 3100 Coronet 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.
General Boat Info
MakeTiara Yachts
MakeTiara Yachts
Model3100 Coronet
Model3800 Open
Model Year2012
Model Year2009
Measurements / Dimensions
Beam12 ft. 6 in. (3.81 m)
Beam14 ft. 2 in. (4.32 m)
Beam - Meters3.81
Beam - Meters4.32
Beam - Inches15
Beam - Inches17
Deadrise14℃
Deadrise18℃
Draft [max] - Detail2 ft. 8 in. (0.8 m) with props
Draft [max] - Detail3 ft. 6 in. (1.06 m) with props
Draft [max] - Meters0.81
Draft [max] - Meters1.07
Draft [max] - Inches32
Draft [max] - Inches42
Weight - Detail13,550 lbs. (6,146 kg) gas
Weight - Detail22,600 lbs. (10,251 kg)
Weight - kg6146.17
Weight - kg10251.18
Weight - lbs.1355
Weight - lbs.226
Height - Detail8 ft. (2.44 m) waterline to top of standard arch
Height - Detail9 ft. 5 in. (2.87 m) from waterline to top of windshield 10 ft. 5 in. (3.17 m) from waterline to top of optional hardtop
Height - Meters2.44
Height - Meters3.18
Height - Inches96
Height - Inches125
Length - Feet33.08
Length - Feet38
Length [over all with swim platform]36 ft. 5 in. (11.1 m) with standard pulpit and standard 40 in. swim platform
Length [over all with swim platform]43 ft. 3 in. (13.18 m) with standard pulpit and optional 30 in. swim platform
Length overall - Detail33 ft. 1 in. (10.08 m) with standard pulpit 30 ft. 6 in. (9.29 m) without standard pulpit
Length overall - Detail38 ft. 4 in. (11.69 m) without standard pulpit 40 ft. 9 in. (12.42 m) with standard pulpit
Length overall - Meters10.08
Length overall - Meters12.42
Length overall - Inches397
Length overall - Inches489
Length - Metersnot available
Length - Meters11.69
Length - Inchesnot available
Length - Inches4
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail210 gal. (794.9 l)
Fuel tank capacity - Detail411 gal. (1,556 l)
Fuel tank capacity - Liters794.94
Fuel tank capacity - Liters1555.8
Fuel tank capacity - Gal21
Fuel tank capacity - Gal411
Fuel typeGas or Diesel
Fuel typeDiesel
Drive typeInboard - Twin
Drive typeInboard - Twin
Engine maxTwin 375 hp
Engine max490 hp
Engine/s standardnot available
Engine/s standardTwin Cummins? QSC8.3, 490 hp (with Smartcraft? VesselView?
Batterynot available
Battery12V 2-bank battery system with batteries and battery switches (3 engine batteries, 3 house batteries)
Operational Info
Headroom5 ft. 8 in. (1.73 m)
Headroomnot available
Sleeping capacity2
Sleeping capacityPlan A: 5 Plan B: 6
Water capacity33 gal. (124.92 l)
Water capacity110 gal. (416 l)
Holding tank capacity - Detail20 gal. (75.71 l)
Holding tank capacity - Detail40 gal. (151 l)
Holding tank capacity - Liters75.71
Holding tank capacity - Liters151.42
Holding tank capacity - Gal2
Holding tank capacity - Gal4