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Head to head

Brian James C4 Transporter vs Ifor Williams GX

The Ifor Williams GX is rated 700kg heavier gross.

Last reviewed 13 September 2026

C4 Transporter
Brian James C4 Transporter
Ifor Williams GX
Ifor Williams GX - image: Ifor Williams Trailers

Key differences

Specifications side by side

Brian James C4 TransporterIfor Williams GX
Gross weight2000-2600kg (range across C4 variants)2700-3500kg
Deck length12ft 2in (3.7m) loading area, up to 16ft overall-
Deck width5ft 10in - 6ft-
Axles2-
Ramps8ft loading ramps included-

Sources: Brian James C4 Transporter, Ifor Williams GX. 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.

Full C4 Transporter specifications →

Buy or hire the GX if...

  • you want one that is rated 700kg heavier gross

Ifor Williams GX, 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

Full GX specifications →

Common questions

What is the difference between the Brian James C4 Transporter and the Ifor Williams GX?

The Ifor Williams GX is rated 700kg heavier gross. The Brian James C4 Transporter is a car transporter trailer; the Ifor Williams GX is a plant trailer range.

Can I tow the Brian James C4 Transporter or the Ifor Williams GX 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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