Head to head
Equi-Trek Super Sonic 4T vs Ifor Williams HB506
The Equi-Trek Super Sonic 4T is a horsebox or horse trailer. The Ifor Williams HB506 is a two-horse trailer, twin axle.
Last reviewed 13 September 2026
Specifications side by side
| Equi-Trek Super Sonic 4T | Ifor Williams HB506 | |
|---|---|---|
| Brakes | Braked | Braked |
| Gross weight | - | 2,600kg |
| Unladen weight | - | 920kg |
| Internal length | - | 3.16m |
| Internal width | - | 1.67m |
Sources: Equi-Trek Super Sonic 4T, Ifor Williams HB506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Super Sonic 4T if...
Equi-Trek Super Sonic 4T, carried by UK dealers and hire companies listed on GetBrent for sale. Horseboxes and horse trailers like this are chosen by private owners and competition yards moving horses to shows, vets and new yards.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the HB506 if...
The mainstream two-horse trailer in Britain, used by private owners and small yards. Its comparatively low unladen weight for the class is the practical point: it widens the range of 4x4s and large SUVs that can legally and comfortably tow it.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Equi-Trek Super Sonic 4T and the Ifor Williams HB506?
The Equi-Trek Super Sonic 4T is a horsebox or horse trailer; the Ifor Williams HB506 is a two-horse trailer, twin axle.
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