Head to head
Brian James C4 Blue vs Lider 39450
The Brian James C4 Blue is rated 1,850kg heavier gross. The Lider 39450 is 445kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Brian James C4 Blue is rated 1,850kg heavier gross.
- Unladen weight: the Brian James C4 Blue weighs 445kg more empty.
Specifications side by side
| Brian James C4 Blue | Lider 39450 | |
|---|---|---|
| Gross weight | 2,600kg | 750kg |
| Unladen weight | 695kg | 250kg |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Internal length | - | 251cm |
| Internal width | - | 133cm |
| Internal height | - | 40cm |
| Axles | - | 2 |
| Brakes | - | Unbraked |
Sources: Brian James C4 Blue, Lider 39450. 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 rated 1,850kg heavier gross
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 39450 if...
- you want one that is 445kg lighter empty
Gives buyers the stability of a twin-axle trailer for garden and general loads while staying under the unbraked weight limit.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Brian James C4 Blue and the Lider 39450?
The Brian James C4 Blue is rated 1,850kg heavier gross. The Lider 39450 is 445kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Lider 39450 is a an unbraked twin-axle wooden-sided general purpose trailer rated at 750kg gross weight..
Which is lighter, the Brian James C4 Blue or the Lider 39450?
The Lider 39450. It is 445kg lighter empty than the Brian James C4 Blue.
Can I tow the Brian James C4 Blue or the Lider 39450 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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