Head to head
Equi-Trek Sonic Five Seats 3,500kg vs Ifor Williams LM106
The Ifor Williams LM106 is 1,880kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic Five Seats 3,500kg weighs 1,880kg more empty.
Specifications side by side
| Equi-Trek Sonic Five Seats 3,500kg | Ifor Williams LM106 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 2500kg | 620kg |
| Payload | - | 2880kg |
| Internal bed | - | 3.01m x 1.98m |
Sources: Equi-Trek Sonic Five Seats 3,500kg, Ifor Williams LM106. 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 LM106 if...
- you want one that is 1,880kg lighter empty
For users who find the LM105's 1.68m bed too narrow for pallets or wider machinery but do not need extra length, offering the same bed length on a wider chassis.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Equi-Trek Sonic Five Seats 3,500kg and the Ifor Williams LM106?
The Ifor Williams LM106 is 1,880kg lighter empty. The Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox; the Ifor Williams LM106 is a a wider general-purpose flatbed trailer.
Which is lighter, the Equi-Trek Sonic Five Seats 3,500kg or the Ifor Williams LM106?
The Ifor Williams LM106. It is 1,880kg lighter empty than the Equi-Trek Sonic Five Seats 3,500kg.
Can I tow the Equi-Trek Sonic Five Seats 3,500kg or the Ifor Williams LM106 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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