Head to head
Brian James C4 Transporter vs Ifor Williams GD85
The Brian James C4 Transporter is a car transporter trailer. The Ifor Williams GD85 is a general duty box trailer, single or twin axle.
Last reviewed 13 September 2026
Specifications side by side
| Brian James C4 Transporter | Ifor Williams GD85 | |
|---|---|---|
| Gross weight | 2000-2600kg (range across C4 variants) | 1,400kg single axle / 2,700kg twin axle |
| 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 | - | 395kg single axle / 485kg twin axle |
| Internal bed | - | 2.5m x 1.58m (8ft 2in x 5ft 2in) |
| Brakes | - | Braked, auto-reverse over-run |
Sources: Brian James C4 Transporter, Ifor Williams GD85. 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 GD85 if...
The entry point of the Ifor Williams general duty range and one of the most common working trailers in Britain. Smallholders, gardeners and tradespeople buy it for everyday hauling without needing a heavy tow vehicle, and the twin-axle version roughly doubles the payload for a modest gain in unladen weight.
Full GD85 specifications →Common questions
What is the difference between the Brian James C4 Transporter and the Ifor Williams GD85?
The Brian James C4 Transporter is a car transporter trailer; the Ifor Williams GD85 is a general duty box trailer, single or twin axle.
Can I tow the Brian James C4 Transporter or the Ifor Williams GD85 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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