Head to head
Brian James General Plant vs Equi-Trek Sonic 3,500kg
The Brian James General Plant is a a tri-axle equipment trailer for general building and groundwork plant. The Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox.
Last reviewed 13 September 2026
Specifications side by side
| Brian James General Plant | Equi-Trek Sonic 3,500kg | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Payload | 2593kg | - |
| Internal bed | 3.6m x 1.8m | - |
| Axles | Tri-axle (12in wheels) | - |
| Unladen weight | - | 2320kg |
Sources: Brian James General Plant, Equi-Trek Sonic 3,500kg. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the General Plant if...
A tougher all-round plant trailer for contractors who need to move a range of machines - diggers, dumpers, rollers - rather than one specific type. The tri-axle chassis spreads load for towing at higher gross weight on public roads.
Listed by
- Fieldfare Trailer Centre - Salisbury
- Bicester Trailer Centre - Bicester
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
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 General Plant and the Equi-Trek Sonic 3,500kg?
The Brian James General Plant is a a tri-axle equipment trailer for general building and groundwork plant; the Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox.
Can I tow the Brian James General Plant 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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