Head to head
Brian James C4 Blue vs Ifor Williams GP
The Ifor Williams GP is rated 900kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GP is rated 900kg heavier gross.
Specifications side by side
| Brian James C4 Blue | Ifor Williams GP | |
|---|---|---|
| Gross weight | 2,600kg | 3500kg |
| Unladen weight | 695kg | - |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Axles | - | Tri-axle |
Sources: Brian James C4 Blue, Ifor Williams GP. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 Blue if...
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 GP if...
- you want one that is rated 900kg heavier gross
Ifor Williams GP, carried by UK dealers and hire companies listed on GetBrent for sale. Plant trailers are the working end of groundworks: contractors and hire firms use them to move mini diggers, dumpers and rollers between sites.
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 C4 Blue and the Ifor Williams GP?
The Ifor Williams GP is rated 900kg heavier gross. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams GP is a plant trailer range.
Can I tow the Brian James C4 Blue or the Ifor Williams GP 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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