Head to head
Brian James Box Van 600 vs Equi-Trek Sonic Five Seats 3,500kg
The Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross.
Specifications side by side
| Brian James Box Van 600 | Equi-Trek Sonic Five Seats 3,500kg | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Payload | 1829kg | - |
| Internal bed | 3.0m x 1.6m | - |
| Axles | Twin (12in wheels) | - |
| Unladen weight | - | 2500kg |
Sources: Brian James Box Van 600, Equi-Trek Sonic Five Seats 3,500kg. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Box Van 600 if...
Bought by tradespeople and small delivery operators who need goods kept dry and out of sight rather than carried on an open flatbed. Its 2700kg rating keeps it inside the range towable by many car-derived vans.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the Sonic Five Seats 3,500kg if...
- you want one that is rated 800kg heavier gross
A five-seat cab variant of the Sonic, aimed at families or small teams who want to travel together to competitions rather than sending a second car. It carries the same horse capacity as the standard Sonic.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Brian James Box Van 600 and the Equi-Trek Sonic Five Seats 3,500kg?
The Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross. The Brian James Box Van 600 is a a small enclosed twin-axle box van trailer; the Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox.
Can I tow the Brian James Box Van 600 or the Equi-Trek Sonic Five Seats 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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