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Head to head

Equi-Trek Sonic 3,500kg vs Ifor Williams LM106

The Ifor Williams LM106 is 1.7 tonnes lighter empty.

Last reviewed 13 September 2026

Equi-Trek Sonic 3,500kg
Equi-Trek Sonic 3,500kg - image: threecounties.trek-trailers.co.uk
Ifor Williams LM106
Ifor Williams LM106 - image: Barnwell Trailers Ltd

Key differences

Specifications side by side

Equi-Trek Sonic 3,500kgIfor Williams LM106
Gross weight3500kg3500kg
Unladen weight2320kg620kg
Payload-2880kg
Internal bed-3.01m x 1.98m

Sources: Equi-Trek Sonic 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 3,500kg if...

A compact motorised horsebox pitched as easy to drive day to day, for owners of one or two horses who want a small horsebox rather than a trailer and tow car. It is one of Equi-Trek's lower-cost motorised models.

Listed by

Full Sonic 3,500kg specifications →

Buy or hire the LM106 if...

  • you want one that is 1.7 tonnes 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

Full LM106 specifications →

Common questions

What is the difference between the Equi-Trek Sonic 3,500kg and the Ifor Williams LM106?

The Ifor Williams LM106 is 1.7 tonnes lighter empty. The Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox; the Ifor Williams LM106 is a a wider general-purpose flatbed trailer.

Which is lighter, the Equi-Trek Sonic 3,500kg or the Ifor Williams LM106?

The Ifor Williams LM106. It is 1.7 tonnes lighter empty than the Equi-Trek Sonic 3,500kg.

Can I tow the Equi-Trek Sonic 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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