Head to head
Brian James C4 Blue vs Ifor Williams GP126
The Ifor Williams GP126 is rated 900kg heavier gross. The Brian James C4 Blue is 85kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GP126 is rated 900kg heavier gross.
- Unladen weight: the Ifor Williams GP126 weighs 85kg more empty.
Specifications side by side
| Brian James C4 Blue | Ifor Williams GP126 | |
|---|---|---|
| Gross weight | 2,600kg | 3500kg |
| Unladen weight | 695kg | 780kg (skids) or 795kg (ramp) |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Internal length | - | 3.66m/12' |
| Internal width | - | 1.78m/5'10" |
Sources: Brian James C4 Blue, Ifor Williams GP126. 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 85kg 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 GP126 if...
- you want one that is rated 900kg heavier gross
A twin-axle general purpose trailer from Ifor Williams's plant range, used to carry mini diggers, dumpers and other small plant, or general building materials. Available with loading ramps or skids.
Listed by
- East Midlands Trailers - Leicester, Thrussington
Common questions
What is the difference between the Brian James C4 Blue and the Ifor Williams GP126?
The Ifor Williams GP126 is rated 900kg heavier gross. The Brian James C4 Blue is 85kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams GP126 is a general purpose plant trailer.
Which is lighter, the Brian James C4 Blue or the Ifor Williams GP126?
The Brian James C4 Blue. It is 85kg lighter empty than the Ifor Williams GP126.
Can I tow the Brian James C4 Blue or the Ifor Williams GP126 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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