Head to head
Equi-Trek Super Sonic 4T vs Ifor Williams P5
The Equi-Trek Super Sonic 4T is a horsebox or horse trailer. The Ifor Williams P5 is a the smallest unbraked domestic trailer ifor williams makes.
Last reviewed 13 September 2026

Specifications side by side
| Equi-Trek Super Sonic 4T | Ifor Williams P5 | |
|---|---|---|
| Brakes | Braked | Unbraked |
| Gross weight | - | 500kg |
| Unladen weight | - | 141kg |
| Payload | - | 359kg |
| Internal bed | - | 1.53m x 1.02m |
Sources: Equi-Trek Super Sonic 4T, Ifor Williams P5. 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 P5 if...
A light general-purpose trailer for domestic buyers moving garden waste, small loads or a mower, chosen for its low unladen weight so it can be towed by almost any car.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Equi-Trek Super Sonic 4T and the Ifor Williams P5?
The Equi-Trek Super Sonic 4T is a horsebox or horse trailer; the Ifor Williams P5 is a the smallest unbraked domestic trailer Ifor Williams makes.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.
