Head to head
Brian James Race Transporter 4 vs Ifor Williams GH Plant with DigaDoc
The Ifor Williams GH Plant with DigaDoc is 571kg lighter empty. The Brian James Race Transporter 4 has a bed 2.21m (7.5ft) longer and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Brian James Race Transporter 4 weighs 571kg more empty.
- Internal bed: the Brian James Race Transporter 4 has a bed 2.21m (7.5ft) longer.
- Gross weight: the Brian James Race Transporter 4 is rated 800kg heavier gross.
Specifications side by side
| Brian James Race Transporter 4 | Ifor Williams GH Plant with DigaDoc | |
|---|---|---|
| Gross weight | 3500kg | 2700kg |
| Unladen weight | from 1180kg | 609kg |
| Internal bed | 5.0m / 5.5m long | 2.79m x 1.31m |
| Payload | up to 2320kg | - |
| Internal width | 2.12m | - |
| Axles | Twin | - |
Sources: Brian James Race Transporter 4, Ifor Williams GH Plant with DigaDoc. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 4 if...
- you want one that has a bed 2.21m (7.5ft) longer
- you want one that is rated 800kg heavier gross
Aimed at motorsport teams and vehicle recovery operators who need a hydraulic tilt-bed for easy low loading of a single car. It is the entry point into the numbered Race Transporter range, below the 5, 6 and 7.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Bicester Trailer Centre - Bicester
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the GH Plant with DigaDoc if...
- you want one that is 571kg lighter empty
Bought by plant hire and groundworks firms that need to prove what left the yard and where it went, since DigaDoc records load movements electronically on top of the standard GH plant trailer chassis. It is the same GH94 base trailer as the plain GH94, with the tracking hardware added.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Brian James Race Transporter 4 and the Ifor Williams GH Plant with DigaDoc?
The Ifor Williams GH Plant with DigaDoc is 571kg lighter empty. The Brian James Race Transporter 4 has a bed 2.21m (7.5ft) longer and is rated 800kg heavier gross. The Brian James Race Transporter 4 is a an open twin-axle hydraulic tilt-bed car transporter; the Ifor Williams GH Plant with DigaDoc is a a plant trailer fitted with the manufacturer's DigaDoc load-tracking system.
Which is lighter, the Brian James Race Transporter 4 or the Ifor Williams GH Plant with DigaDoc?
The Ifor Williams GH Plant with DigaDoc. It is 571kg lighter empty than the Brian James Race Transporter 4.
Can I tow the Brian James Race Transporter 4 or the Ifor Williams GH Plant with DigaDoc 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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