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Brian James A-Max 305 vs Brian James Race Box

The Brian James Race Box is rated 400kg heavier gross. The Brian James A-Max 305 carries 150kg more.

Last reviewed 13 September 2026

A-Max 305
Brian James A-Max 305
Brian James Race Box
Brian James Race Box - image: Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK

Key differences

Specifications side by side

Brian James A-Max 305Brian James Race Box
Gross weight2600kg3000kg
Payload2035kgup to 1885kg
Internal bed4.3m x 1.96m-
Internal width-1.95m
Internal length-4.0m / 4.5m / 5.0m
Axles-Twin

Sources: Brian James A-Max 305, Brian James Race Box. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the A-Max 305 if...

  • you want one that carries 150kg more

Suits owners of larger saloons or estate cars who have outgrown the shorter A-Max 210 but do not need a full car-transporter range trailer. The extra bed length and payload give more margin for a heavier road car.

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Full A-Max 305 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.

Full Race Box specifications →

Common questions

What is the difference between the Brian James A-Max 305 and the Brian James Race Box?

The Brian James Race Box is rated 400kg heavier gross. The Brian James A-Max 305 carries 150kg more. The Brian James A-Max 305 is a a longer, higher-capacity version of the A-Max flatbed car trailer; the Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars.

Which carries more, the Brian James A-Max 305 or the Brian James Race Box?

The Brian James A-Max 305, by 150kg.

Can I tow the Brian James A-Max 305 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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