Head to head
Brian James C4 Transporter vs Ifor Williams GP126
The Brian James C4 Transporter is a car transporter trailer. The Ifor Williams GP126 is a general purpose plant trailer.
Last reviewed 13 September 2026
Specifications side by side
| Brian James C4 Transporter | Ifor Williams GP126 | |
|---|---|---|
| Gross weight | 2000-2600kg (range across C4 variants) | 3500kg |
| Deck length | 12ft 2in (3.7m) loading area, up to 16ft overall | - |
| Deck width | 5ft 10in - 6ft | - |
| Axles | 2 | - |
| Ramps | 8ft loading ramps included | - |
| Unladen weight | - | 780kg (skids) or 795kg (ramp) |
| Internal length | - | 3.66m/12' |
| Internal width | - | 1.78m/5'10" |
Sources: Brian James C4 Transporter, Ifor Williams GP126. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 Transporter if...
A twin-axle trailer for moving a single car, van or small plant item, used by garages, racers and recovery firms. It is light enough for many family cars to tow while still carrying a saloon or hatchback on its own wheels.
Listed by
- Lancaster trailer hire - ELY
- Derby Trailer Hire Limited - Derby
Buy or hire the GP126 if...
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 Transporter and the Ifor Williams GP126?
The Brian James C4 Transporter is a car transporter trailer; the Ifor Williams GP126 is a general purpose plant trailer.
Can I tow the Brian James C4 Transporter 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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