Head to head
Brian James C4 Blue vs Ifor Williams TT3621
The Brian James C4 Blue is 295kg lighter empty. The Ifor Williams TT3621 is rated 900kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 295kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 900kg heavier gross.
Specifications side by side
| Brian James C4 Blue | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 2,600kg | 3500kg |
| Unladen weight | 695kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Brian James C4 Blue, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the C4 Blue if...
- you want one that is 295kg lighter empty
A twin-axle open car transporter built to carry one road or track car behind a family car or 4x4. Track-day drivers and small vehicle traders hire it for moving a single car without the cost of an enclosed trailer.
Full C4 Blue specifications →Buy or hire the TT3621 if...
- you want one that is rated 900kg heavier gross
The largest Ifor Williams tipper. A 3.6m by 1.95m body is chosen for bulky, lighter loads - green waste, clearance and bark - where volume runs out before weight does, and it is a staple of plant and tool hire fleets. Formerly sold as the TT126.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- Lancaster trailer hire - ELY
Common questions
What is the difference between the Brian James C4 Blue and the Ifor Williams TT3621?
The Brian James C4 Blue is 295kg lighter empty. The Ifor Williams TT3621 is rated 900kg heavier gross. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Brian James C4 Blue or the Ifor Williams TT3621?
The Brian James C4 Blue. It is 295kg lighter empty than the Ifor Williams TT3621.
Can I tow the Brian James C4 Blue or the Ifor Williams TT3621 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.