Head to head
Brian James C4 Blue vs Ifor Williams HBX506
The Brian James C4 Blue is 170kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HBX506 weighs 170kg more empty.
Specifications side by side
| Brian James C4 Blue | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 2,600kg | 2600kg |
| Unladen weight | 695kg | 865kg |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | 1735kg |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Brian James C4 Blue, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 Blue if...
- you want one that is 170kg lighter empty
A twin-axle open car transporter built to carry one road or track car behind a family car or 4x4. Track-day drivers and small vehicle traders hire it for moving a single car without the cost of an enclosed trailer.
Full C4 Blue specifications →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
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- East Midlands Trailers - Leicester, Thrussington
- R M Trailer Centre - Middlesbrough, North Ormesby
Common questions
What is the difference between the Brian James C4 Blue and the Ifor Williams HBX506?
The Brian James C4 Blue is 170kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which is lighter, the Brian James C4 Blue or the Ifor Williams HBX506?
The Brian James C4 Blue. It is 170kg lighter empty than the Ifor Williams HBX506.
Can I tow the Brian James C4 Blue 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.
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