Head to head
Blue Line BL750E vs Equi-Trek Sonic 3,500kg
The Equi-Trek Sonic 3,500kg is rated 2,750kg heavier gross.
Last reviewed 13 September 2026
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Key differences
- Gross weight: the Equi-Trek Sonic 3,500kg is rated 2,750kg heavier gross.
Specifications side by side
| Blue Line BL750E | Equi-Trek Sonic 3,500kg | |
|---|---|---|
| Gross weight | 750kg | 3500kg |
| Internal bed | 8ft2in x 4ft1in | - |
| Axles | 1 | - |
| Brakes | Unbraked | - |
| Unladen weight | - | 2320kg |
Sources: Blue Line BL750E, Equi-Trek Sonic 3,500kg. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the BL750E if...
Blue Line's entry-level general purpose trailer, bought by DIY users and small tradespeople who want a light trailer any car can tow.
Listed by
- A47 Barwell Trailers Sales Hire Service Ltd - Leicester, Barwell
Buy or hire the Sonic 3,500kg if...
- you want one that is rated 2,750kg heavier gross
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
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Blue Line BL750E and the Equi-Trek Sonic 3,500kg?
The Equi-Trek Sonic 3,500kg is rated 2,750kg heavier gross. The Blue Line BL750E is a an unbraked single-axle general purpose trailer rated at 750kg gross weight.; the Equi-Trek Sonic 3,500kg is a compact 3.5 tonne motorised 2-horse horsebox.
Can I tow the Blue Line BL750E or the Equi-Trek Sonic 3,500kg 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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