Head to head
Equi-Trek Sonic Five Seats 3,500kg vs Ifor Williams TA5
The Ifor Williams TA5 is 1,890kg lighter empty. The Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Sonic Five Seats 3,500kg weighs 1,890kg more empty.
- Gross weight: the Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross.
Specifications side by side
| Equi-Trek Sonic Five Seats 3,500kg | Ifor Williams TA5 | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg standard, 3,500kg on TA5HD variants |
| Unladen weight | 2500kg | 610kg (8ft x 4ft) up to 1,030kg (TA5HD 12ft x 7ft) |
| Internal width | - | 1.53m |
| Internal length | - | 2.32m, 3.12m or 3.72m depending on model |
| Brakes | - | Braked |
Sources: Equi-Trek Sonic Five Seats 3,500kg, Ifor Williams TA5. 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...
- you want one that is rated 800kg heavier gross
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 TA5 if...
- you want one that is 1,890kg lighter empty
The standard British livestock trailer, and the one most smallholders and farmers picture when they say livestock trailer. Low loading height and flexible partitions matter more here than raw capacity, because the job is getting animals in and out calmly rather than maximising a payload.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Corwen Trailer Centre - Corwen
- East Midlands Trailers - Leicester, Thrussington
- 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 TA5?
The Ifor Williams TA5 is 1,890kg lighter empty. The Equi-Trek Sonic Five Seats 3,500kg is rated 800kg heavier gross. The Equi-Trek Sonic Five Seats 3,500kg is a 5-seat version of the Sonic motorised horsebox; the Ifor Williams TA5 is a livestock trailer, twin axle.
Which is lighter, the Equi-Trek Sonic Five Seats 3,500kg or the Ifor Williams TA5?
The Ifor Williams TA5. It is 1,890kg 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 TA5 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.