Head to head
Brian James C4 vs Humbaur Steely
The Brian James C4 is rated 1,850kg heavier gross.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Brian James C4 is rated 1,850kg heavier gross.
Specifications side by side
| Brian James C4 | Humbaur Steely | |
|---|---|---|
| Gross weight | 2600kg | 750kg |
| Axles | Twin | - |
| Size | 2m x 4.5m loading area | - |
| Payload | - | 630kg |
| Inner length | - | 2050mm |
| Inner width | - | 1095mm |
Sources: Brian James C4, Humbaur Steely. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 if...
- you want one that is rated 1,850kg heavier gross
Brian James C4, carried by UK dealers and hire companies listed on GetBrent for hire. Car transporters in this class are hired and bought by track-day drivers, classic car owners and recovery firms who need to move a vehicle without driving it.
Listed by
- Cobham Trailer Hire - Cobham, East Horsley
- R M Trailer Centre - Middlesbrough, North Ormesby
Buy or hire the Steely if...
The Steely is Humbaur's budget single-axle trailer, built with a hot-dip galvanised chassis as what the manufacturer describes as an entry point into trailer ownership. It suits light garden, construction-site and hobby loads rather than heavier trade use.
Full Steely specifications →Common questions
What is the difference between the Brian James C4 and the Humbaur Steely?
The Brian James C4 is rated 1,850kg heavier gross. The Brian James C4 is a car transporter trailer; the Humbaur Steely is a a small, unbraked single-axle flatbed trailer aimed at first-time buyers and light garden/site use..
Can I tow the Brian James C4 or the Humbaur Steely 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.
