Model against model
Brian James A4 Transporter vs Brian James Race Box
Two models people put on the same shortlist. Every figure below is sourced, and where one side has a specification the other does not publish, the row is left out rather than filled with a guess.
Last reviewed 13 September 2026
| Brian James A4 Transporter | Brian James Race Box | |
|---|---|---|
| Gross weight | 3000kg | 3000kg |
| Payload | 2230kg | up to 1885kg |
| Axles | Twin axle | Twin |
Only specifications published for both models appear here. Full Brian James A4 Transporter figures and full Brian James Race Box figures.
Choose the A4 Transporter if...
The A4 Transporter suits driving schools, small dealers and enthusiasts who need to move one car at a time behind a car-derived tow vehicle, offering a straightforward twin-axle bed without the cost of a beavertail or enclosed body. Its compact size makes it easier to store and manoeuvre than the longer trailers in the A Transporter range.
Dealers listed this model as 'A4', '130 A4 Transporter' and 'A Series'; all point to Brian James' A Transporter range, where the 4.5m twin-axle bed (model code 130-4520-30-2-12) is the version generally sold as the A4.
Full specifications →Choose the Race Box if...
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.
Full specifications →Common questions
What is the difference between the Brian James A4 Transporter and the Brian James Race Box?
Brian James A4 Transporter: The A4 Transporter suits driving schools, small dealers and enthusiasts who need to move one car at a time behind a car-derived tow vehicle, offering a straightforward twin-axle bed without the cost of a beavertail or enclosed body. Its compact size makes it easier to store and manoeuvre than the longer trailers in the A Transporter range. Brian James Race Box: 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.
Are these figures reliable?
Every figure on this page was read off a manufacturer or established dealer page and is linked to its source. Anything we could not verify is left out rather than estimated. Specifications change by model year and configuration, so confirm with the supplier before relying on them.
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