Head to head
Brian James Race Transporter 6 vs Equi-Trek Sonic Five Seats 3,500kg
The Brian James Race Transporter 6 is 1,060kg lighter empty.
Last reviewed 13 September 2026


Key differences
- Unladen weight: the Equi-Trek Sonic Five Seats 3,500kg weighs 1,060kg more empty.
Specifications side by side
| Brian James Race Transporter 6 | Equi-Trek Sonic Five Seats 3,500kg | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | from 1440kg | 2500kg |
| Payload | up to 2060kg | - |
| Internal width | 2.13m / 2.35m | - |
| Internal bed | 5.5m / 6.0m / 6.5m long | - |
| Axles | Tri-axle | - |
Sources: Brian James Race Transporter 6, 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 Race Transporter 6 if...
- you want one that is 1,060kg lighter empty
Chosen by professional race and recovery outfits carrying wider GT or modified cars that need the extra internal width over the Race Transporter 4 and 5. The tri-axle chassis and electric tilt-bed suit frequent, heavier-duty use.
Listed by
- Bicester Trailer Centre - Bicester
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 Race Transporter 6 and the Equi-Trek Sonic Five Seats 3,500kg?
The Brian James Race Transporter 6 is 1,060kg lighter empty. The Brian James Race Transporter 6 is a a tri-axle electric tilt-bed car transporter for heavier or wider vehicles; the Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox.
Which is lighter, the Brian James Race Transporter 6 or the Equi-Trek Sonic Five Seats 3,500kg?
The Brian James Race Transporter 6. It is 1,060kg lighter empty than the Equi-Trek Sonic Five Seats 3,500kg.
Can I tow the Brian James Race Transporter 6 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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