Head to head
Brian James C4 vs Ifor Williams HB506
The Brian James C4 is a car transporter trailer. The Ifor Williams HB506 is a two-horse trailer, twin axle.
Last reviewed 13 September 2026
Specifications side by side
| Brian James C4 | Ifor Williams HB506 | |
|---|---|---|
| Gross weight | 2600kg | 2,600kg |
| Axles | Twin | - |
| Size | 2m x 4.5m loading area | - |
| Unladen weight | - | 920kg |
| Internal length | - | 3.16m |
| Internal width | - | 1.67m |
| Brakes | - | Braked |
Sources: Brian James C4, Ifor Williams HB506. 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 HB506 if...
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 Brian James C4 and the Ifor Williams HB506?
The Brian James C4 is a car transporter trailer; the Ifor Williams HB506 is a two-horse trailer, twin axle.
Can I tow the Brian James C4 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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