Head to head
Brian James Race Box vs Ifor Williams GX126
The Ifor Williams GX126 carries 850kg more and is rated 500kg heavier gross. The Brian James Race Box is 34cm (1ft) longer inside and is 11cm wider inside.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams GX126 carries 850kg more.
- Gross weight: the Ifor Williams GX126 is rated 500kg heavier gross.
- Internal length: the Brian James Race Box is 34cm (1ft) longer inside.
- Internal width: the Brian James Race Box is 11cm wider inside.
Specifications side by side
| Brian James Race Box | Ifor Williams GX126 | |
|---|---|---|
| Gross weight | 3000kg | 3500kg |
| Payload | up to 1885kg | 2735kg (Skids); 2705kg (Ramp) |
| Internal width | 1.95m | 1.84m / 6'0" |
| Internal length | 4.0m / 4.5m / 5.0m | 3.66m / 12'0" |
| Axles | Twin | - |
| Overall length | - | 5.70m |
| Overall width | - | 2.30m |
| Unladen weight | - | 765kg (Skids); 795kg (Ramp) |
| Tyres | - | 155/70R12C |
Sources: Brian James Race Box, Ifor Williams GX126. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Box if...
- you want one that is 34cm (1ft) longer inside
- you want one that is 11cm wider inside
Positioned for classic car owners and smaller motorsport teams who want their car fully enclosed and weatherproof but do not need the wider bed of the Race Sport or Race Transporter ranges. The narrower internal width suits a single classic or compact race car rather than a modern GT car.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the GX126 if...
- you want one that carries 850kg more
- you want one that is rated 500kg heavier gross
The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available.
Full GX126 specifications →Common questions
What is the difference between the Brian James Race Box and the Ifor Williams GX126?
The Ifor Williams GX126 carries 850kg more and is rated 500kg heavier gross. The Brian James Race Box is 34cm (1ft) longer inside and is 11cm wider inside. The Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars; the Ifor Williams GX126 is a a twin-axle plant trailer available in Skids and Ramp variants for carrying machinery..
Which carries more, the Brian James Race Box or the Ifor Williams GX126?
The Ifor Williams GX126, by 850kg.
Can I tow the Brian James Race Box or the Ifor Williams GX126 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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