Head to head
Brian James C4 vs Ifor Williams HBX506
The Brian James C4 is a car transporter trailer. The Ifor Williams HBX506 is a a double horsebox trailer from ifor williams' hbx range.
Last reviewed 13 September 2026

Specifications side by side
| Brian James C4 | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 2600kg | 2600kg |
| Axles | Twin | - |
| Size | 2m x 4.5m loading area | - |
| Unladen weight | - | 865kg |
| Payload | - | 1735kg |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Brian James C4, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 if...
Brian James C4, carried by UK dealers and hire companies listed on GetBrent for hire. Car transporters in this class are hired and bought by track-day drivers, classic car owners and recovery firms who need to move a vehicle without driving it.
Listed by
- Cobham Trailer Hire - Cobham, East Horsley
- R M Trailer Centre - Middlesbrough, North Ormesby
Buy or hire the HBX506 if...
A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Brian James C4 and the Ifor Williams HBX506?
The Brian James C4 is a car transporter trailer; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Can I tow the Brian James C4 or the Ifor Williams HBX506 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.
