Head to head
Brian James C4 Blue vs Ifor Williams GX125 HD
The Ifor Williams GX125 HD is rated 900kg heavier gross. The Brian James C4 Blue is 65kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GX125 HD is rated 900kg heavier gross.
- Unladen weight: the Ifor Williams GX125 HD weighs 65kg more empty.
Specifications side by side
| Brian James C4 Blue | Ifor Williams GX125 HD | |
|---|---|---|
| Gross weight | 2,600kg | 3500kg |
| Unladen weight | 695kg | 760kg |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | 2740kg |
| Internal bed | - | 3.66m x 1.57m |
Sources: Brian James C4 Blue, Ifor Williams GX125 HD. 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 65kg 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 GX125 HD if...
- you want one that is rated 900kg heavier gross
For plant hire firms carrying longer machines such as excavators with extended dipper arms or tracked dumpers that need the extra bed length over the GX105HD.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Brian James C4 Blue and the Ifor Williams GX125 HD?
The Ifor Williams GX125 HD is rated 900kg heavier gross. The Brian James C4 Blue is 65kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams GX125 HD is a a longer heavy-duty plant trailer.
Which is lighter, the Brian James C4 Blue or the Ifor Williams GX125 HD?
The Brian James C4 Blue. It is 65kg lighter empty than the Ifor Williams GX125 HD.
Can I tow the Brian James C4 Blue or the Ifor Williams GX125 HD 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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