Head to head
Equi-Trek Sonic Five Seats 3,500kg vs Ifor Williams TT3017
The Ifor Williams TT3017 is 1,630kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic Five Seats 3,500kg weighs 1,630kg more empty.
Specifications side by side
| Equi-Trek Sonic Five Seats 3,500kg | Ifor Williams TT3017 | |
|---|---|---|
| Gross weight | 3500kg | 3,500kg |
| Unladen weight | 2500kg | 870-880kg depending on tyre specification |
| Internal body | - | 3.01m x 1.62m (9ft 9in x 5ft 6in) |
| Brakes | - | Braked |
Sources: Equi-Trek Sonic Five Seats 3,500kg, Ifor Williams TT3017. 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 TT3017 if...
- you want one that is 1,630kg lighter empty
A mid-size powered tipper used by groundworkers, agricultural contractors and self-builders moving muck, aggregate and spoil. The electric tipping ram is what you are paying for over a hand-winch tipper, and on a trailer used weekly it earns that back quickly.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- 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 TT3017?
The Ifor Williams TT3017 is 1,630kg lighter empty. The Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox; the Ifor Williams TT3017 is a tipping trailer, twin axle.
Which is lighter, the Equi-Trek Sonic Five Seats 3,500kg or the Ifor Williams TT3017?
The Ifor Williams TT3017. It is 1,630kg 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 TT3017 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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