Head to head
Anssems GT500-151 vs Ifor Williams HB506
The Ifor Williams HB506 is rated 2.1 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB506 is rated 2.1 tonnes heavier gross.
Specifications side by side
| Anssems GT500-151 | Ifor Williams HB506 | |
|---|---|---|
| Gross weight | 500kg | 2,600kg |
| Internal dimensions | 151cm x 101cm x 48cm | - |
| Unladen weight | - | 920kg |
| Internal length | - | 3.16m |
| Internal width | - | 1.67m |
| Brakes | - | Braked |
Sources: Anssems GT500-151, Ifor Williams HB506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GT500-151 if...
A light trailer for camping gear, luggage and small DIY loads, towable behind almost any car. The hard-top version is the one most buyers want, because weatherproof and lockable is the whole reason to choose this over a builders trailer.
Full GT500-151 specifications →Buy or hire the HB506 if...
- you want one that is rated 2.1 tonnes heavier gross
The mainstream two-horse trailer in Britain, used by private owners and small yards. Its comparatively low unladen weight for the class is the practical point: it widens the range of 4x4s and large SUVs that can legally and comfortably tow it.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Anssems GT500-151 and the Ifor Williams HB506?
The Ifor Williams HB506 is rated 2.1 tonnes heavier gross. The Anssems GT500-151 is a small single-axle luggage and general purpose trailer; the Ifor Williams HB506 is a two-horse trailer, twin axle.
Can I tow the Anssems GT500-151 or the Ifor Williams HB506 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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