Head to head
Brian James C4 Blue vs Eco-Trailer Velocity iQ
The Brian James C4 Blue is 285kg lighter empty. The Eco-Trailer Velocity iQ is rated 400kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Eco-Trailer Velocity iQ weighs 285kg more empty.
- Gross weight: the Eco-Trailer Velocity iQ is rated 400kg heavier gross.
Specifications side by side
| Brian James C4 Blue | Eco-Trailer Velocity iQ | |
|---|---|---|
| Gross weight | 2,600kg | 3,000kg |
| Unladen weight | 695kg | 980kg |
| Bed length | 5.0m | 4.88m |
| Bed width | 2.0m | - |
| Payload | - | 2,020kg |
| Overall dimensions | - | 7.15m x 2.48m x 2.40m |
Sources: Brian James C4 Blue, Eco-Trailer Velocity iQ. 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 285kg 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 Velocity iQ if...
- you want one that is rated 400kg heavier gross
An enclosed trailer that keeps a car dry and out of sight in transit, built on Eco-Trailer's own chassis. Motorsport teams and car traders hire it to move a vehicle without exposing it to weather or attention on the road.
Listed by
- OK Racing Trailer Hire - Hertfordshire
Common questions
What is the difference between the Brian James C4 Blue and the Eco-Trailer Velocity iQ?
The Brian James C4 Blue is 285kg lighter empty. The Eco-Trailer Velocity iQ is rated 400kg heavier gross. The Brian James C4 Blue is a twin-axle car transporter trailer; the Eco-Trailer Velocity iQ is a enclosed car transporter trailer.
Which is lighter, the Brian James C4 Blue or the Eco-Trailer Velocity iQ?
The Brian James C4 Blue. It is 285kg lighter empty than the Eco-Trailer Velocity iQ.
Can I tow the Brian James C4 Blue or the Eco-Trailer Velocity iQ 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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