Head to head
Brian James Race Box vs Ifor Williams GP126
The Ifor Williams GP126 is rated 500kg heavier gross. The Brian James Race Box is 17cm wider inside and is 34cm (1ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GP126 is rated 500kg heavier gross.
- Internal width: the Brian James Race Box is 17cm wider inside.
- Internal length: the Brian James Race Box is 34cm (1ft) longer inside.
Specifications side by side
| Brian James Race Box | Ifor Williams GP126 | |
|---|---|---|
| Gross weight | 3000kg | 3500kg |
| Internal width | 1.95m | 1.78m/5'10" |
| Internal length | 4.0m / 4.5m / 5.0m | 3.66m/12' |
| Payload | up to 1885kg | - |
| Axles | Twin | - |
| Unladen weight | - | 780kg (skids) or 795kg (ramp) |
Sources: Brian James Race Box, Ifor Williams GP126. 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 17cm wider inside
- you want one that is 34cm (1ft) longer 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 GP126 if...
- you want one that is rated 500kg heavier gross
A twin-axle general purpose trailer from Ifor Williams's plant range, used to carry mini diggers, dumpers and other small plant, or general building materials. Available with loading ramps or skids.
Listed by
- East Midlands Trailers - Leicester, Thrussington
Common questions
What is the difference between the Brian James Race Box and the Ifor Williams GP126?
The Ifor Williams GP126 is rated 500kg heavier gross. The Brian James Race Box is 17cm wider inside and is 34cm (1ft) longer inside. The Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars; the Ifor Williams GP126 is a general purpose plant trailer.
Can I tow the Brian James Race Box or the Ifor Williams GP126 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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