Head to head
Brian James Race Transporter 6 vs Ifor Williams TT3621
The Ifor Williams TT3621 is 450kg lighter empty and carries 450kg more. The Brian James Race Transporter 6 is 18cm wider inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Brian James Race Transporter 6 weighs 450kg more empty.
- Payload: the Ifor Williams TT3621 carries 450kg more.
- Internal width: the Brian James Race Transporter 6 is 18cm wider inside.
Specifications side by side
| Brian James Race Transporter 6 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | from 1440kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | up to 2060kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal width | 2.13m / 2.35m | 1.95m / 6'5" |
| Internal bed | 5.5m / 6.0m / 6.5m long | - |
| Axles | Tri-axle | - |
| Internal length | - | 3.62m / 11'9" |
Sources: Brian James Race Transporter 6, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 6 if...
- you want one that is 18cm wider inside
Chosen by professional race and recovery outfits carrying wider GT or modified cars that need the extra internal width over the Race Transporter 4 and 5. The tri-axle chassis and electric tilt-bed suit frequent, heavier-duty use.
Listed by
- Bicester Trailer Centre - Bicester
Buy or hire the TT3621 if...
- you want one that is 450kg lighter empty
- you want one that carries 450kg more
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
Common questions
What is the difference between the Brian James Race Transporter 6 and the Ifor Williams TT3621?
The Ifor Williams TT3621 is 450kg lighter empty and carries 450kg more. The Brian James Race Transporter 6 is 18cm wider inside. The Brian James Race Transporter 6 is a a tri-axle electric tilt-bed car transporter for heavier or wider vehicles; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Brian James Race Transporter 6 or the Ifor Williams TT3621?
The Ifor Williams TT3621. It is 450kg lighter empty than the Brian James Race Transporter 6.
Which carries more, the Brian James Race Transporter 6 or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 450kg.
Can I tow the Brian James Race Transporter 6 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.
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