Windy 31 Zonda 2018 vs Windy 37 Grand Mistral 2006 - Boat Spec Comparison

Q: Which is the larger boat — the Windy 31 Zonda 2018 or the Windy 37 Grand Mistral 2006?

The Windy 37 Grand Mistral 2006 is the longer of the two at 36,0 feet overall. The Windy 31 Zonda 2018 comes in at 31,0 feet, making it roughly 5,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: What is the maximum horsepower rating for these boats?

The Windy 31 Zonda 2018 has a documented max rating of 400 hp. Engine specifications for the Windy 37 Grand Mistral 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

Q: How many people can each boat hold?

The Windy 31 Zonda 2018 is Coast Guard rated for 9 passengers, while the Windy 37 Grand Mistral 2006 is certified for 11. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.

Q: Which boat is wider, and does it affect trailering?

The Windy 37 Grand Mistral 2006 measures 138" wide, compared to 116" for the Windy 31 Zonda 2018. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

Q: Which boat has the larger fuel tank — the Windy 31 Zonda 2018 or the Windy 37 Grand Mistral 2006?

The Windy 37 Grand Mistral 2006 has the bigger tank at 178 gallons, versus 137 gallons on the Windy 31 Zonda 2018. That 41-gallon difference translates to roughly 124–207 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Windy 31 Zonda 2018 and Windy 37 Grand Mistral 2006 from the same manufacturer?

Yes — both the Windy 31 Zonda 2018 and the Windy 37 Grand Mistral 2006 are built by Windy. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.

Boat Comparison

Windy 31 Zonda 2018 vs Windy 37 Grand Mistral 2006

Windy

Windy 31 Zonda 2018

2018

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Windy

Windy 37 Grand Mistral 2006

2006

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Detailed Evaluation & Buyer Recommendation

Windy 31 Zonda 2018 vs Windy 37 Grand Mistral 2006 — Same Brand, Different Boat

The Windy 31 Zonda 2018 vs Windy 37 Grand Mistral 2006 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

The Windy 31 Zonda 2018 carries a rated maximum of 400 hp. Engine data for the Windy 37 Grand Mistral 2006 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Windy 37 Grand Mistral 2006 carries 178 gallons versus 137 gallons in the Windy 31 Zonda 2018. 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 Windy 37 Grand Mistral 2006 is rated for 11 passengers, while the Windy 31 Zonda 2018 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Windy 37 Grand Mistral 2006 could be the deciding factor.

Bottom line: Choose the Windy 37 Grand Mistral 2006 if your priority is putting more people on the water — it handles 11 passengers and at 36,0 ft it has the deck room to back that rating up comfortably. The Windy 31 Zonda 2018 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.

Measurements / Dimensions

Length overall - Detail31.00 ft

Length overall - Detail36 ft. 7 in. (11.14 m)

Length - Feet31

Length - Feet36

Length overall - Meters9.45

Length overall - Meters11.15

Length overall - Inches372

Length overall - Inches439

Beam9.64 ft

Beam11 ft. 6 in. (3.50 m)

Beam - Meters2.94

Beam - Meters3.51

Beam - Inches116

Beam - Inches138

Weight - Detailnot available

Weight - Detail14,330 lbs. (6,500 kg) (including engine)

Weight - kgnot available

Weight - kg6499.97

Weight - lbs.not available

Weight - lbs.1433

Height - Detailnot available

Height - Detail10 ft. 11 in. (3.34 m) (including cradle)

Height - Metersnot available

Height - Meters3.33

Height - Inchesnot available

Height - Inches131

Length - Metersnot available

Length - Meters11.14

Length - Inchesnot available

Length - Inches7

Engine and Drivetrain

Fuel tank capacity - Gal136.57

Fuel tank capacity - Gal178

Fuel tank capacity - Liters516.97

Fuel tank capacity - Liters673.8

Engine makeVOLVO PENTA

Engine makenot available

Horsepower400 hp

Horsepowernot available

Drive typeinboard

Drive typeI/O

Fuel tank capacity - Detailnot available

Fuel tank capacity - Detail178 gal. (810 l)

Operational Info

Water capacity26.4

Water capacity48 gal. (220 l)

Boat typePower

Boat typenot available

Sleeping capacitynot available

Sleeping capacity5

General Boat Info

Makenot available

MakeWindy

Modelnot available

Model37 Grand Mistral

Model Yearnot available

Model Year2006

Windy 31 Zonda 2018 vs Windy 37 Grand Mistral 2006 — Common Questions

Which is the larger boat — the Windy 31 Zonda 2018 or the Windy 37 Grand Mistral 2006?

The Windy 37 Grand Mistral 2006 is the longer of the two at 36,0 feet overall. The Windy 31 Zonda 2018 comes in at 31,0 feet, making it roughly 5,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

What is the maximum horsepower rating for these boats?

The Windy 31 Zonda 2018 has a documented max rating of 400 hp. Engine specifications for the Windy 37 Grand Mistral 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

How many people can each boat hold?

The Windy 31 Zonda 2018 is Coast Guard rated for 9 passengers, while the Windy 37 Grand Mistral 2006 is certified for 11. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.

Which boat is wider, and does it affect trailering?

The Windy 37 Grand Mistral 2006 measures 138" wide, compared to 116" for the Windy 31 Zonda 2018. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

Which boat has the larger fuel tank — the Windy 31 Zonda 2018 or the Windy 37 Grand Mistral 2006?

The Windy 37 Grand Mistral 2006 has the bigger tank at 178 gallons, versus 137 gallons on the Windy 31 Zonda 2018. That 41-gallon difference translates to roughly 124–207 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Windy 31 Zonda 2018 and Windy 37 Grand Mistral 2006 from the same manufacturer?

Yes — both the Windy 31 Zonda 2018 and the Windy 37 Grand Mistral 2006 are built by Windy. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.

← Windy 31 Zonda 2018 full specs ← Windy 37 Grand Mistral 2006 full specs