Head to head
Bateson Derby vs Equi-Trek Sonic 3,500kg
The Bateson Derby is 1,645kg lighter empty. The Equi-Trek Sonic 3,500kg is rated 1.8 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic 3,500kg weighs 1,645kg more empty.
- Gross weight: the Equi-Trek Sonic 3,500kg is rated 1.8 tonnes heavier gross.
Specifications side by side
| Bateson Derby | Equi-Trek Sonic 3,500kg | |
|---|---|---|
| Gross weight | 1,700kg | 3500kg |
| Unladen weight | 675kg | 2320kg |
| Payload | approx. 1,025kg | - |
| Internal length | 2.70m | - |
| Internal width | 1.50m | - |
Sources: Bateson Derby, Equi-Trek Sonic 3,500kg. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Derby if...
- you want one that is 1,645kg lighter empty
A light double horse trailer that can be towed by a large saloon car rather than needing a 4x4, thanks to its low unladen weight. It suits owners moving one or two horses locally who want to avoid buying a heavier, purpose-built tow vehicle.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Buy or hire the Sonic 3,500kg if...
- you want one that is rated 1.8 tonnes heavier gross
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 Bateson Derby and the Equi-Trek Sonic 3,500kg?
The Bateson Derby is 1,645kg lighter empty. The Equi-Trek Sonic 3,500kg is rated 1.8 tonnes heavier gross. The Bateson Derby is a lightweight rear-unload double horse trailer; the Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox.
Which is lighter, the Bateson Derby or the Equi-Trek Sonic 3,500kg?
The Bateson Derby. It is 1,645kg lighter empty than the Equi-Trek Sonic 3,500kg.
Can I tow the Bateson Derby 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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