Head to head
Brian James Connect vs Equi-Trek Sonic Five Seats 3,500kg
The Brian James Connect is a highly configurable flatbed trailer. The Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the sonic motorised horsebox.
Last reviewed 13 September 2026
Specifications side by side
| Brian James Connect | Equi-Trek Sonic Five Seats 3,500kg | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Bed size | 5.5m x 2.1m | - |
| Axles | Triple axle, 10 wheels | - |
| Unladen weight | - | 2500kg |
Sources: Brian James Connect, 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 Connect if...
Brian James's modular flatbed platform, built to order in a range of lengths, widths and axle counts. Plant and vehicle hire firms specify it as a general-purpose load carrier rather than buying a dedicated car transporter or plant trailer.
Full Connect specifications →Buy or hire the Sonic Five Seats 3,500kg if...
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 Connect and the Equi-Trek Sonic Five Seats 3,500kg?
The Brian James Connect is a highly configurable flatbed 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 Connect 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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