Head to head
Brian James C4 Blue vs Brian James Race Box
The Brian James Race Box is rated 400kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Brian James Race Box is rated 400kg heavier gross.
Specifications side by side
| Brian James C4 Blue | Brian James Race Box | |
|---|---|---|
| Gross weight | 2,600kg | 3000kg |
| Unladen weight | 695kg | - |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | up to 1885kg |
| Internal width | - | 1.95m |
| Internal length | - | 4.0m / 4.5m / 5.0m |
| Axles | - | Twin |
Sources: Brian James C4 Blue, Brian James Race Box. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 Blue if...
A twin-axle open car transporter built to carry one road or track car behind a family car or 4x4. Track-day drivers and small vehicle traders hire it for moving a single car without the cost of an enclosed trailer.
Full C4 Blue specifications →Buy or hire the Race Box if...
- you want one that is rated 400kg 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
Common questions
What is the difference between the Brian James C4 Blue and the Brian James Race Box?
The Brian James Race Box is rated 400kg heavier gross. The Brian James C4 Blue is a twin-axle car transporter trailer; the Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars.
Can I tow the Brian James C4 Blue or the Brian James Race Box 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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