Head to head
Eco-Trailer Velocity iQ vs Ifor Williams CT166
The Ifor Williams CT166 carries 595kg more and is rated 500kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams CT166 carries 595kg more.
- Gross weight: the Ifor Williams CT166 is rated 500kg heavier gross.
- Unladen weight: the Eco-Trailer Velocity iQ weighs 95kg more empty.
Specifications side by side
| Eco-Trailer Velocity iQ | Ifor Williams CT166 | |
|---|---|---|
| Gross weight | 3,000kg | 3500kg |
| Unladen weight | 980kg | 885kg |
| Payload | 2,020kg | 2615kg |
| Overall dimensions | 7.15m x 2.48m x 2.40m | - |
| Bed length | 4.88m | - |
| Internal bed | - | 4.87m x 1.90m |
Sources: Eco-Trailer Velocity iQ, Ifor Williams CT166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Velocity iQ if...
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
Buy or hire the CT166 if...
- you want one that carries 595kg more
- you want one that is rated 500kg heavier gross
- you want one that is 95kg lighter empty
Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Eco-Trailer Velocity iQ and the Ifor Williams CT166?
The Ifor Williams CT166 carries 595kg more and is rated 500kg heavier gross. The Eco-Trailer Velocity iQ is a enclosed car transporter trailer; the Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer.
Which is lighter, the Eco-Trailer Velocity iQ or the Ifor Williams CT166?
The Ifor Williams CT166. It is 95kg lighter empty than the Eco-Trailer Velocity iQ.
Which carries more, the Eco-Trailer Velocity iQ or the Ifor Williams CT166?
The Ifor Williams CT166, by 595kg.
Can I tow the Eco-Trailer Velocity iQ or the Ifor Williams CT166 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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