Head to head
Brian James C4 Blue vs Ifor Williams LM166
The Ifor Williams LM166 is rated 900kg heavier gross. The Brian James C4 Blue is 100kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM166 is rated 900kg heavier gross.
- Unladen weight: the Ifor Williams LM166 weighs 100kg more empty.
Specifications side by side
| Brian James C4 Blue | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 2,600kg | 3500kg |
| Unladen weight | 695kg | 795kg |
| Bed length | 5.0m | - |
| Bed width | 2.0m | - |
| Payload | - | 2705kg |
| Internal bed | - | 4.77m x 1.98m |
Sources: Brian James C4 Blue, Ifor Williams LM166. 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 100kg 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 LM166 if...
- you want one that is rated 900kg heavier gross
Bought by contractors and hauliers who regularly carry longer loads, such as fencing materials or several pallets, and need more deck length than the LM106 or LM126 provide.
Listed by
- East Midlands Trailers - Leicester, Thrussington
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Brian James C4 Blue and the Ifor Williams LM166?
The Ifor Williams LM166 is rated 900kg heavier gross. The Brian James C4 Blue is 100kg lighter empty. The Brian James C4 Blue is a twin-axle car transporter trailer; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which is lighter, the Brian James C4 Blue or the Ifor Williams LM166?
The Brian James C4 Blue. It is 100kg lighter empty than the Ifor Williams LM166.
Can I tow the Brian James C4 Blue or the Ifor Williams LM166 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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