Head to head
Equi-Trek Sonic Five Seats 3,500kg vs Equi-Trek Space-Treka III
The Equi-Trek Space-Treka III is 1 tonnes lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic Five Seats 3,500kg weighs 1 tonnes more empty.
Specifications side by side
| Equi-Trek Sonic Five Seats 3,500kg | Equi-Trek Space-Treka III | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 2500kg | 1500kg |
| Axles | - | 2 |
| Brakes | - | Braked (four fully braked wheels) |
Sources: Equi-Trek Sonic Five Seats 3,500kg, Equi-Trek Space-Treka III. Figures vary by model year and options, so check with the supplier before you commit.
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
Buy or hire the Space-Treka III if...
- you want one that is 1 tonnes lighter empty
The current version of Equi-Trek's Space-Treka trailer, giving a generous horse area plus a separate living/tack space in a twin-axle chassis. It suits owners who want overnight facilities without moving to a triaxle model.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Equi-Trek Sonic Five Seats 3,500kg and the Equi-Trek Space-Treka III?
The Equi-Trek Space-Treka III is 1 tonnes lighter empty. The Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox; the Equi-Trek Space-Treka III is a trailer with a large horse area and separate living space.
Which is lighter, the Equi-Trek Sonic Five Seats 3,500kg or the Equi-Trek Space-Treka III?
The Equi-Trek Space-Treka III. It is 1 tonnes lighter empty than the Equi-Trek Sonic Five Seats 3,500kg.
Can I tow the Equi-Trek Sonic Five Seats 3,500kg or the Equi-Trek Space-Treka III 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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