Cobalt Boats Cobalt Yacht 46 2008 vs Cobalt Boats R8 Surf 2021 - Boat Spec Comparison

Q: Which is the larger boat — the Cobalt Boats Cobalt Yacht 46 2008 or the Cobalt Boats R8 Surf 2021?

The Cobalt Boats Cobalt Yacht 46 2008 is the longer of the two at 45,0 feet overall. The Cobalt Boats R8 Surf 2021 comes in at 28,0 feet, making it roughly 17,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: How many people can each boat hold?

The Cobalt Boats Cobalt Yacht 46 2008 is Coast Guard rated for 14 passengers, while the Cobalt Boats R8 Surf 2021 is certified for 8. 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 has the larger fuel tank — the Cobalt Boats Cobalt Yacht 46 2008 or the Cobalt Boats R8 Surf 2021?

The Cobalt Boats R8 Surf 2021 has the bigger tank at 8 gallons, versus 4 gallons on the Cobalt Boats Cobalt Yacht 46 2008. That 4-gallon difference translates to roughly 12–20 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Cobalt Boats Cobalt Yacht 46 2008 and Cobalt Boats R8 Surf 2021 from the same manufacturer?

Yes — both the Cobalt Boats Cobalt Yacht 46 2008 and the Cobalt Boats R8 Surf 2021 are built by Cobalt Boats. 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

Cobalt Boats Cobalt Yacht 46 2008 vs Cobalt Boats R8 Surf 2021

Cobalt Boats

Cobalt Boats Cobalt Yacht 46 2008

2008

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Cobalt Boats

Cobalt Boats R8 Surf 2021

2021

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Detailed Evaluation & Buyer Recommendation

Cobalt Boats Cobalt Yacht 46 2008 vs Cobalt Boats R8 Surf 2021 — Same Brand, Different Boat

The Cobalt Boats Cobalt Yacht 46 2008 vs Cobalt Boats R8 Surf 2021 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.

For family outings this is probably the sharpest distinction between the two. The Cobalt Boats Cobalt Yacht 46 2008 is rated for 14 passengers, while the Cobalt Boats R8 Surf 2021 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Cobalt Boats Cobalt Yacht 46 2008 could be the deciding factor.

Bottom line: Choose the Cobalt Boats Cobalt Yacht 46 2008 if your priority is putting more people on the water — it handles 14 passengers and at 45,0 ft it has the deck room to back that rating up comfortably. The Cobalt Boats R8 Surf 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.

General Boat Info

MakeCobalt Boats

Makenot available

ModelCobalt Yacht 46

Modelnot available

Model Year2008

Model Yearnot available

Measurements / Dimensions

Beam14 ft. 0 in. (4.26 m)

Beamnot available

Beam - Meters4.27

Beam - Metersnot available

Beam - Inches168

Beam - Inchesnot available

Length - Meters13.7

Length - Metersnot available

Length - Feet45

Length - Feet28

Length overall - Detail46 ft. 10 in. (14.35 m)

Length overall - Detail28.00 ft

Length overall - Meters14.27

Length overall - Meters8.53

Length overall - Inches562

Length overall - Inches336

Body / Hull

Hull materialFiberglass

Hull materialnot available

Hull typeDeep Vee

Hull typenot available

Engine and Drivetrain

Fuel tank capacity - Detail400 gal. (1,515 l)

Fuel tank capacity - Detailnot available

Fuel tank capacity - Liters1514.16

Fuel tank capacity - Liters302.83

Fuel tank capacity - Gal4

Fuel tank capacity - Gal8

Drive typeInboard

Drive typenot available

Fuel typenot available

Fuel typeGas

Operational Info

Water capacity150 gal. (398 l)

Water capacity1

Boat typenot available

Boat typePower

Cobalt Boats Cobalt Yacht 46 2008 vs Cobalt Boats R8 Surf 2021 — Common Questions

Which is the larger boat — the Cobalt Boats Cobalt Yacht 46 2008 or the Cobalt Boats R8 Surf 2021?

The Cobalt Boats Cobalt Yacht 46 2008 is the longer of the two at 45,0 feet overall. The Cobalt Boats R8 Surf 2021 comes in at 28,0 feet, making it roughly 17,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

How many people can each boat hold?

The Cobalt Boats Cobalt Yacht 46 2008 is Coast Guard rated for 14 passengers, while the Cobalt Boats R8 Surf 2021 is certified for 8. 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 has the larger fuel tank — the Cobalt Boats Cobalt Yacht 46 2008 or the Cobalt Boats R8 Surf 2021?

The Cobalt Boats R8 Surf 2021 has the bigger tank at 8 gallons, versus 4 gallons on the Cobalt Boats Cobalt Yacht 46 2008. That 4-gallon difference translates to roughly 12–20 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Cobalt Boats Cobalt Yacht 46 2008 and Cobalt Boats R8 Surf 2021 from the same manufacturer?

Yes — both the Cobalt Boats Cobalt Yacht 46 2008 and the Cobalt Boats R8 Surf 2021 are built by Cobalt Boats. 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.

← Cobalt Boats Cobalt Yacht 46 2008 full specs ← Cobalt Boats R8 Surf 2021 full specs