Head to head
Eco-Trailer Velocity iQ vs Ifor Williams TT3621
The Ifor Williams TT3621 carries 490kg more and is rated 500kg heavier gross. The Eco-Trailer Velocity iQ is 10kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams TT3621 carries 490kg more.
- Gross weight: the Ifor Williams TT3621 is rated 500kg heavier gross.
- Unladen weight: the Ifor Williams TT3621 weighs 10kg more empty.
Specifications side by side
| Eco-Trailer Velocity iQ | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 3,000kg | 3500kg |
| Unladen weight | 980kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 2,020kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Overall dimensions | 7.15m x 2.48m x 2.40m | - |
| Bed length | 4.88m | - |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Eco-Trailer Velocity iQ, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Velocity iQ if...
- you want one that is 10kg lighter empty
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 TT3621 if...
- you want one that carries 490kg more
- you want one that is rated 500kg 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 Eco-Trailer Velocity iQ and the Ifor Williams TT3621?
The Ifor Williams TT3621 carries 490kg more and is rated 500kg heavier gross. The Eco-Trailer Velocity iQ is 10kg lighter empty. The Eco-Trailer Velocity iQ is a enclosed car transporter trailer; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Eco-Trailer Velocity iQ or the Ifor Williams TT3621?
The Eco-Trailer Velocity iQ. It is 10kg lighter empty than the Ifor Williams TT3621.
Which carries more, the Eco-Trailer Velocity iQ or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 490kg.
Can I tow the Eco-Trailer Velocity iQ 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.