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Head to head

Brian James A Transporter (A4) vs Ifor Williams Transporta

The Ifor Williams Transporta is rated 1.5 tonnes heavier gross.

Last reviewed 13 September 2026

Brian James A Transporter (A4)
Brian James A Transporter (A4) - image: Fieldfare Trailer Centre
Ifor Williams Transporta
Ifor Williams Transporta - image: Ifor Williams Trailers

Key differences

Specifications side by side

Brian James A Transporter (A4)Ifor Williams Transporta
Gross weight2,000kg to 3,000kg depending on variant3500kg
Bed3.7m x 1.8m up to 5.0m x 2.0m depending on variant-
BrakesBraked, tandem axle-
Unladen weight-1480kg
Internal length-5220mm
Internal width-2236mm
Overall length-6595mm

Sources: Brian James A Transporter (A4), Ifor Williams Transporta. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the A Transporter (A4) if...

One of the most common car trailers in Britain, bought by trade and private owners for moving road cars, project cars and small vans. The reason it sells is the spread of bed length and gross weight combinations, which lets you match the trailer to the tow car rather than the other way round.

Full A Transporter (A4) specifications →

Buy or hire the Transporta if...

  • you want one that is rated 1.5 tonnes heavier gross

A car transporter trailer aimed at racers and track day drivers moving a single competition car, sitting within Ifor Williams's wider car transporter range alongside its tiltbed and beavertail designs.

Listed by

Full Transporta specifications →

Common questions

What is the difference between the Brian James A Transporter (A4) and the Ifor Williams Transporta?

The Ifor Williams Transporta is rated 1.5 tonnes heavier gross. The Brian James A Transporter (A4) is a open flatbed car transporter, twin axle; the Ifor Williams Transporta is a motorsport car transporter trailer.

Can I tow the Brian James A Transporter (A4) or the Ifor Williams Transporta 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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