Head to head
Brian James C4 Blue vs Ifor Williams P5
The Brian James C4 Blue is rated 2.1 tonnes heavier gross. The Ifor Williams P5 is 554kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Brian James C4 Blue is rated 2.1 tonnes heavier gross.
- Unladen weight: the Brian James C4 Blue weighs 554kg more empty.
Specifications side by side
| Brian James C4 Blue | Ifor Williams P5 | |
|---|---|---|
| Gross weight | 2,600kg | 500kg |
| Unladen weight | 695kg | 141kg |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | 359kg |
| Internal bed | - | 1.53m x 1.02m |
| Brakes | - | Unbraked |
Sources: Brian James C4 Blue, Ifor Williams P5. 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 rated 2.1 tonnes heavier gross
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 P5 if...
- you want one that is 554kg lighter empty
A light general-purpose trailer for domestic buyers moving garden waste, small loads or a mower, chosen for its low unladen weight so it can be towed by almost any car.
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 P5?
The Brian James C4 Blue is rated 2.1 tonnes heavier gross. The Ifor Williams P5 is 554kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams P5 is a the smallest unbraked domestic trailer Ifor Williams makes.
Which is lighter, the Brian James C4 Blue or the Ifor Williams P5?
The Ifor Williams P5. It is 554kg lighter empty than the Brian James C4 Blue.
Can I tow the Brian James C4 Blue or the Ifor Williams P5 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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