Head to head
Brian James Race Transporter 4 vs Ifor Williams HBX506
The Ifor Williams HBX506 is 315kg lighter empty. The Brian James Race Transporter 4 is rated 900kg heavier gross and carries 585kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Brian James Race Transporter 4 weighs 315kg more empty.
- Gross weight: the Brian James Race Transporter 4 is rated 900kg heavier gross.
- Payload: the Brian James Race Transporter 4 carries 585kg more.
- Internal width: the Brian James Race Transporter 4 is 45cm (1.5ft) wider inside.
Specifications side by side
| Brian James Race Transporter 4 | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 3500kg | 2600kg |
| Unladen weight | from 1180kg | 865kg |
| Payload | up to 2320kg | 1735kg |
| Internal width | 2.12m | 1.67m |
| Internal bed | 5.0m / 5.5m long | - |
| Axles | Twin | - |
| Internal length | - | 3.26m |
Sources: Brian James Race Transporter 4, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 4 if...
- you want one that is rated 900kg heavier gross
- you want one that carries 585kg more
- you want one that is 45cm (1.5ft) wider inside
Aimed at motorsport teams and vehicle recovery operators who need a hydraulic tilt-bed for easy low loading of a single car. It is the entry point into the numbered Race Transporter range, below the 5, 6 and 7.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Bicester Trailer Centre - Bicester
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the HBX506 if...
- you want one that is 315kg lighter empty
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 Race Transporter 4 and the Ifor Williams HBX506?
The Ifor Williams HBX506 is 315kg lighter empty. The Brian James Race Transporter 4 is rated 900kg heavier gross and carries 585kg more. The Brian James Race Transporter 4 is a an open twin-axle hydraulic tilt-bed car transporter; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which is lighter, the Brian James Race Transporter 4 or the Ifor Williams HBX506?
The Ifor Williams HBX506. It is 315kg lighter empty than the Brian James Race Transporter 4.
Which carries more, the Brian James Race Transporter 4 or the Ifor Williams HBX506?
The Brian James Race Transporter 4, by 585kg.
Can I tow the Brian James Race Transporter 4 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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