Head to head
Brian James Race Box vs Ifor Williams General Duty
The Brian James Race Box is 2.16m (7ft) longer inside and is rated 1.6 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Internal length: the Brian James Race Box is 2.16m (7ft) longer inside.
- Gross weight: the Brian James Race Box is rated 1.6 tonnes heavier gross.
- Internal width: the Brian James Race Box is 72cm (2.5ft) wider inside.
Specifications side by side
| Brian James Race Box | Ifor Williams General Duty | |
|---|---|---|
| Gross weight | 3000kg | 1400kg to 2700kg depending on model |
| Internal width | 1.95m | 1.23m (4ft) to 1.71m (5ft 6in) |
| Internal length | 4.0m / 4.5m / 5.0m | 1.84m (6ft) to 3.71m (12ft 2in) |
| Axles | Twin | Single or twin axle |
| Payload | up to 1885kg | - |
Sources: Brian James Race Box, Ifor Williams General Duty. 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 2.16m (7ft) longer inside
- you want one that is rated 1.6 tonnes heavier gross
- you want one that is 72cm (2.5ft) 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 General Duty if...
Ifor Williams's entry-level flatbed range, bought by householders, gardeners and small trades for tip runs, garden waste and general loads. It is the trailer most UK hire yards keep several of, since one size or another suits almost any small job.
Listed by
- John Page Trailers Ltd - Ashford, Biddenden
Common questions
What is the difference between the Brian James Race Box and the Ifor Williams General Duty?
The Brian James Race Box is 2.16m (7ft) longer inside and is rated 1.6 tonnes heavier gross. The Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars; the Ifor Williams General Duty is a small flatbed/general purpose trailer range.
Can I tow the Brian James Race Box or the Ifor Williams General Duty 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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