Head to head
Brian James Race Transporter 4 vs Equi-Trek Sonic 3,500kg
The Brian James Race Transporter 4 is 1,140kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic 3,500kg weighs 1,140kg more empty.
Specifications side by side
| Brian James Race Transporter 4 | Equi-Trek Sonic 3,500kg | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | from 1180kg | 2320kg |
| Payload | up to 2320kg | - |
| Internal width | 2.12m | - |
| Internal bed | 5.0m / 5.5m long | - |
| Axles | Twin | - |
Sources: Brian James Race Transporter 4, Equi-Trek Sonic 3,500kg. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 4 if...
- you want one that is 1,140kg lighter empty
Aimed at motorsport teams and vehicle recovery operators who need a hydraulic tilt-bed for easy low loading of a single car. It is the entry point into the numbered Race Transporter range, below the 5, 6 and 7.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Bicester Trailer Centre - Bicester
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the Sonic 3,500kg if...
A compact motorised horsebox pitched as easy to drive day to day, for owners of one or two horses who want a small horsebox rather than a trailer and tow car. It is one of Equi-Trek's lower-cost motorised models.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Brian James Race Transporter 4 and the Equi-Trek Sonic 3,500kg?
The Brian James Race Transporter 4 is 1,140kg lighter empty. The Brian James Race Transporter 4 is a an open twin-axle hydraulic tilt-bed car transporter; the Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox.
Which is lighter, the Brian James Race Transporter 4 or the Equi-Trek Sonic 3,500kg?
The Brian James Race Transporter 4. It is 1,140kg lighter empty than the Equi-Trek Sonic 3,500kg.
Can I tow the Brian James Race Transporter 4 or the Equi-Trek Sonic 3,500kg on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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