Head to head
Brian James Race Box vs Ifor Williams GD85
The Brian James Race Box is rated 1.6 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Brian James Race Box is rated 1.6 tonnes heavier gross.
Specifications side by side
| Brian James Race Box | Ifor Williams GD85 | |
|---|---|---|
| Gross weight | 3000kg | 1,400kg single axle / 2,700kg twin axle |
| Payload | up to 1885kg | - |
| Internal width | 1.95m | - |
| Internal length | 4.0m / 4.5m / 5.0m | - |
| Axles | Twin | - |
| 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 Race Box, Ifor Williams GD85. 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 rated 1.6 tonnes heavier gross
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 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 Race Box and the Ifor Williams GD85?
The Brian James Race Box 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 GD85 is a general duty box trailer, single or twin axle.
Can I tow the Brian James Race Box 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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