Performance separates these two: the Vanquish 58 tops out at 50 knots against the Alen 55's 35.
On size, the Vanquish 58 is the longer boat at 17.25 m LOA to 16.80 m. It also takes more guests, 16 against 12 on the Vanquish 58. Both run ips.
These two are closely matched; the decision comes down to the specific brief, garage envelope, guest count, and the missions the boat has to cover. The table below lays out every spec side by side.
The full spec table is below; the gold dot marks the leading value in each row.
| Dimensions | ||
| Length overall | 16.80m | 17.25m |
| Beam | 4.80m | 5.05m |
| Draft | 0.82m | 0.90m |
| Dry weight | 21,000 kg | 20,000 kg |
| Performance | ||
| Top speed | 35 kt | 50 kt |
| Cruising speed | 30 kt | — |
| Range | 280 nm | — |
| Propulsion | ||
| Engine | Volvo IPS 800 | Volvo IPS950 (typical chase spec) or MAN V8 1300 surface drive |
| Engines | 2 | 2 |
| HP per engine | — | 725 |
| Propulsion | ips | ips |
| Capacity | ||
| Passengers | 16 | 12 |
| Fuel capacity | 2,500 L | 1,500 L |
| Water capacity | 500 L | — |
| Build & classification | ||
| Hull material | composite | aluminium |
| Classification | CE-B | CE-B |
| Year | 2019 | 2019 |
| Editorial highlight | ||
| First highlight | Full Composite AIREX Hull | Hardtop or open configuration |
Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.
The builders
Who builds each boat, and where, the yard behind the spec.
Alen Yacht is a Turkish semi-custom builder founded in 2007 by Alp Ozcan, with its production yard in Istanbul and service and representation in St. Tropez and Fort Lauderdale. The yard has positioned itself squarely in the superyacht-tend…
View Alen →Vanquish Yachts is a Dutch builder founded in 2012 by Tom Steentjes, a professional welder and engineer who could not find a lightweight aluminium day boat with superyacht-grade fit and finish - so he built one himself. The shipyard is at…
View Vanquish →More comparisons
Other head-to-heads featuring the 55 or the 58.
- CompareAlen 55 vs Axopar 45 Cross TopView comparison →
- CompareAlen 55 vs Axopar 45 XC CROSS CABINView comparison →
- CompareAlen 55 vs Blue Game BG42View comparison →
- CompareAlen 55 vs Blue Game BG54View comparison →
- CompareAlen 55 vs Blue Game BGX63View comparison →
- CompareAlen 55 vs Brabus Shadow 1200 Sun-TopView comparison →
- CompareAlen 55 vs Brabus Shadow 1200 XC Cross CabinView comparison →
- CompareAlen 55 vs Brabus Shadow 1500 XC Cross CabinView comparison →
Decide with help
Alen 55 or Vanquish 58, let's narrow it down.
Tell us how you'll use the boat and we'll come back with sea-trial slots, build-slot availability and an honest steer on fit.
Talk to us →