Head to head
Bateson 3550 Platform Trailer vs Equi-Trek Sonic Five Seats 3,500kg
The Bateson 3550 Platform Trailer is a 16ft twin-axle platform 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
| Bateson 3550 Platform Trailer | Equi-Trek Sonic Five Seats 3,500kg | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Internal bed | 5m x 2m (expandable to 6.7m x 2.43m) | - |
| Axles | 2 (3 optional) | - |
| Unladen weight | - | 2500kg |
Sources: Bateson 3550 Platform Trailer, 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 3550 Platform Trailer if...
A large flatbed trailer for carrying machinery, building materials or vehicles, with the bed width and length expandable to suit the load. It is bought mainly by contractors and plant hire firms needing a 3.5 tonne platform.
Listed by
- Sleaford Trailers - Sleaford
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 Bateson 3550 Platform Trailer and the Equi-Trek Sonic Five Seats 3,500kg?
The Bateson 3550 Platform Trailer is a 16ft twin-axle platform trailer; the Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox.
Can I tow the Bateson 3550 Platform Trailer 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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