Head to head
Brian James Race Transporter 7 vs Ifor Williams Business Inabox
The Ifor Williams Business Inabox is 8cm wider inside.
Last reviewed 13 September 2026
Key differences
- Internal width: the Ifor Williams Business Inabox is 8cm wider inside.
Specifications side by side
| Brian James Race Transporter 7 | Ifor Williams Business Inabox | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Internal width | 2.1m / 2.3m | 2.18m |
| Payload | up to 2235kg | - |
| Internal bed | 5.5m / 6.0m long | - |
| Axles | Twin or Tri | - |
| Unladen weight | - | 1900kg (Workshop M) |
| Internal length | - | 4.45m (Workshop M) |
| Overall length | - | 5.96m (Workshop M) |
Sources: Brian James Race Transporter 7, 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 7 if...
Sits at the top of the Race Transporter range for teams hauling larger or wider vehicles where the Race Transporter 6 is still not wide enough. The twin/tri-axle choice lets buyers trade a little unladen weight against stability at the widest bed option.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the Business Inabox if...
- you want one that is 8cm 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 7 and the Ifor Williams Business Inabox?
The Ifor Williams Business Inabox is 8cm wider inside. The Brian James Race Transporter 7 is a the largest Race Transporter, offered in twin or tri-axle form for heavier vehicles; the Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit.
Can I tow the Brian James Race Transporter 7 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.