Custom Line 140Custom Line 140
Sirena 42MSirena 42M
VS

Custom Line 140
vs.
Sirena 42M

By YachtBuyer
YachtBuyer is the only place where you can directly compare competing yacht models, with full breakdowns on technical specifications and onboard features.

So with YachtBuyer you can not only enjoy the best data and market activity on your chosen yachts but also how they compare to their closest rivals.

Below, we delve into a detailed comparison of the Custom Line 140 and the Sirena 42M. The Custom Line 140 features a fast displacement hull, ensuring durability and a lighter weight. The yacht's length of 42.15m/138'3" and beam of 8.57m/28'1" provide a stable and spacious platform for both at-sea and anchored conditions. The Sirena Yachts 42M offers a very similar length of 42m/137'10", with a very similar beam of 8.8m/28'10",

Interested in owning a Custom Line 140 or Sirena Yachts 42M? Explore all globally available Custom Line 140 for sale and Sirena Yachts 42M for sale verified through YachtBuyer MarketWatch, free of fake listings, or check out all similar models from Custom Line for sale or Sirena Yachts for sale.

At a Glance

Custom Line 140

Status
In Production
2022 - Present

Sirena 42M

Status
In Production
2026 - Present
Custom Line 140 illustration
42.15m  

Beam 8.57m

Draft 2.31m

LENGTH : BEAM Ratio

0.00
:
1

10 Guests

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

 

5 Cabins

7 Crew

Sirena 42M illustration
42m  

Beam 8.8m

Draft 2.5m

LENGTH : BEAM Ratio

0.00
:
1

10 Guests

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

 

5 Cabins

9 Crew

Performance

  • Cruising Speed

  • Custom Line 140
    0
    knots
  • Sirena 42M
    No Data

  • Top Speed

  • Custom Line 140
    0
    knots
  • Sirena 42M
    No Data

Interior

For most buyers, interior layout, finish and especially space will rank as some of the most important factors when choosing a yacht, here you can see how your chosen yachts directly compare.

Custom Line 140, Interior Custom Line 140, Interior
Custom Line 140
Sirena 42M, Interior Sirena 42M, Interior
Sirena 42M

Accommodation

Cabin design and luxury should deliver a place of real sanctuary for the Owner or guests, with finish, space and light all key.

Custom Line 140, Accommodation Custom Line 140, Accommodation
Custom Line 140
Sirena 42M, Accommodation Sirena 42M, Accommodation
Sirena 42M

Helm Station

Whether it will be the Owner or skipper taking control, helm positions should ensure excellent visibility, supportive seating and a design that delivers clear instrumentation.

Custom Line 140, Helm Station Custom Line 140, Helm Station
Custom Line 140
Sirena 42M, Helm Station Sirena 42M, Helm Station
Awaiting Supply

Deck Areas

As well as being a place to enjoy the real essence of yachting lifestyle, decks are also a serious work area and each area must be safe, practical and so fun to use.

Custom Line 140, Deck Area Custom Line 140, Deck Area
Custom Line 140
Sirena 42M, Deck Area Sirena 42M, Deck Area
Sirena 42M

Flybridge

A superb place to enjoy days or nights on the water, this raised deck and driving position adds another dimension to yacht ownership and the driving experience.

Custom Line 140, Fly Deck/Sportdeck Custom Line 140, Fly Deck/Sportdeck
Custom Line 140
Sirena 42M, Fly Deck/Sportdeck Sirena 42M, Fly Deck/Sportdeck
Sirena 42M

Beach Club

A true beach club should be a waterside lounge and terrace. Usually at the stern, a beach club might open on one, two or three sides of the yacht. It should be practical, able to withstand plenty of use, watersports and saltwater, but also luxurious, creating a spectacular retreat day or night.

Custom Line 140, Beach Club Custom Line 140, Beach Club
No Beach Club
Sirena 42M, Beach Club Sirena 42M, Beach Club
Sirena 42M

Compare Layouts

Sun Deck

Custom Line 140

Sun Deck

 

Sirena 42M

Sun Deck

 

Upper Deck

Custom Line 140

Upper Deck

 

Sirena 42M

Upper Deck

 

Main Deck

Custom Line 140

Main Deck

 

Sirena 42M

Main Deck

 

Lower Deck

Custom Line 140

Lower Deck

 

Sirena 42M

Lower Deck

 

LIVE: Used Price Guides

Find out how much a pre-owned version of these models may cost based upon the asking prices of all yachts listed for sale globally in the last 3 years according to YachtBuyer Market Watch & our current sales listings.

Custom Line 140 Used Prices

In Production Since: 2022

  • Average Price* -
  • Price Range † -
  • Average Age -
 
 
 
No Yachts For Sale
Custom Line 140 For Sale

or Build Your Own

 
 


Rivals to Custom Line 140

Sirena 42M Used Prices

In Production Since: 2026

  • Average Price* -
  • Price Range † -
  • Average Age -

Available to order

View Options & Specs
42M For Sale

or Build Your Own

 
 


Rivals to Sirena 42M

Specification Data

Model Name:Custom Line 14042M
Builder:Custom LineSirena Yachts
Range:Custom Line PlaningSuperyachts
Principal Characteristics
Body Type: Superyacht Superyacht
Use Types: Cruising Cruising
LOA: 42.15m 42m
Max Beam: 8.57m 8.8m
Draft: 2.31m 2.5m
Gross Tonnage:398 GT434 GT
Displacement: 250 Tonnes  
(Full Load)		 496 Tonnes  
(Approx)
Hull Material: Composite  (Composite/Carbon Fibre) Steel
Superstructure: Carbon Fibre Aluminium
Fuel Capacity: 30,000 Litres 45,000 Litres
Fresh Water Capacity: 4,000 Litres 10,700 Litres
Black Water capacity: - 8,500 Litres
Yacht Designers
Exterior Designer: Francesco Paszkowski Design Luca Vallebona
Interior Designer: Margherita Casprini Hot Lab, Luca Vallebona
Accommodation
Guests: 10 10
Cabins: 5 5
Berths:4x Double2x Single1x King2x Double4x Single
Guests Heads: 8 7
Crew
Crew:7 9
Crew Cabins: 4 5
Crew Heads: 4 5
Engines & Performance
Max Speed:21.5 knots -
Brand: MTU
Model:16V 2000 M96L
Qty: x2
Power: 2,600 bhp (1 Kw) each
@ 2,450 rpm
Max Speed: 21.5 knots
Cruising Speed: 18 knots  
Economic Speed: -
Cylinders: 16 Cylinder

Speeds/Ranges Are Approx. - Subject to Load, Sea Conditions & Variables.

Interested?

Find out more about the...

Custom Line 140 For Sale 42M For Sale

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WRITTEN BY

Editorial Team

WRITTEN BY

Editorial Team

The editorial team at YachtBuyer consists of yacht specialists, seasoned professionals, renowned journalists, and individuals with a profound passion for the world of yachting.

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