Head to head
Equi-Trek Sonic Five Seats 3,500kg vs Ifor Williams GX84
The Ifor Williams GX84 is 1,960kg 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 1,960kg 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 GX84 | |
|---|---|---|
| Gross weight | 3500kg | 2700kg |
| Unladen weight | 2500kg | 540kg |
| Payload | - | 2160kg |
| Internal bed | - | 2.45m x 1.27m |
Sources: Equi-Trek Sonic Five Seats 3,500kg, Ifor Williams GX84. 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 GX84 if...
- you want one that is 1,960kg lighter empty
An entry-level plant trailer for landscapers and groundworkers moving a single small excavator or compact roller who do not need the longer beds further up the GX range.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Corwen Trailer Centre - Corwen
Common questions
What is the difference between the Equi-Trek Sonic Five Seats 3,500kg and the Ifor Williams GX84?
The Ifor Williams GX84 is 1,960kg 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 GX84 is a the smallest trailer in the GX plant range.
Which is lighter, the Equi-Trek Sonic Five Seats 3,500kg or the Ifor Williams GX84?
The Ifor Williams GX84. It is 1,960kg 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 GX84 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.