Head to head
Brian James Race Transporter 6 vs Ifor Williams Business Inabox
The Brian James Race Transporter 6 is 460kg lighter empty. The Ifor Williams Business Inabox is 5cm wider inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams Business Inabox weighs 460kg more empty.
- Internal width: the Ifor Williams Business Inabox is 5cm wider inside.
Specifications side by side
| Brian James Race Transporter 6 | Ifor Williams Business Inabox | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | from 1440kg | 1900kg (Workshop M) |
| Internal width | 2.13m / 2.35m | 2.18m |
| Payload | up to 2060kg | - |
| Internal bed | 5.5m / 6.0m / 6.5m long | - |
| Axles | Tri-axle | - |
| Internal length | - | 4.45m (Workshop M) |
| Overall length | - | 5.96m (Workshop M) |
Sources: Brian James Race Transporter 6, Ifor Williams Business Inabox. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 6 if...
- you want one that is 460kg lighter empty
Chosen by professional race and recovery outfits carrying wider GT or modified cars that need the extra internal width over the Race Transporter 4 and 5. The tri-axle chassis and electric tilt-bed suit frequent, heavier-duty use.
Listed by
- Bicester Trailer Centre - Bicester
Buy or hire the Business Inabox if...
- you want one that is 5cm wider inside
A trailer shell fitted out as a mobile workshop, shop or catering unit rather than a load carrier. Tradespeople and mobile caterers buy it to take a fitted-out workspace to a site rather than build one into a van.
Listed by
- Norfolk Trailers - Norwich
Common questions
What is the difference between the Brian James Race Transporter 6 and the Ifor Williams Business Inabox?
The Brian James Race Transporter 6 is 460kg lighter empty. The Ifor Williams Business Inabox is 5cm wider inside. The Brian James Race Transporter 6 is a a tri-axle electric tilt-bed car transporter for heavier or wider vehicles; the Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit.
Which is lighter, the Brian James Race Transporter 6 or the Ifor Williams Business Inabox?
The Brian James Race Transporter 6. It is 460kg lighter empty than the Ifor Williams Business Inabox.
Can I tow the Brian James Race Transporter 6 or the Ifor Williams Business Inabox 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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