Head to head
Brian James A4 Transporter vs Ifor Williams CT166
The Ifor Williams CT166 carries 385kg more and is rated 500kg heavier gross. The Brian James A4 Transporter is 115kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams CT166 carries 385kg more.
- Gross weight: the Ifor Williams CT166 is rated 500kg heavier gross.
- Unladen weight: the Ifor Williams CT166 weighs 115kg more empty.
- Internal bed: the Ifor Williams CT166 has a bed 37cm (1ft) longer.
Specifications side by side
| Brian James A4 Transporter | Ifor Williams CT166 | |
|---|---|---|
| Gross weight | 3000kg | 3500kg |
| Unladen weight | 770kg | 885kg |
| Payload | 2230kg | 2615kg |
| Internal bed | 4.5m x 2.0m | 4.87m x 1.90m |
| Axles | Twin axle | - |
Sources: Brian James A4 Transporter, Ifor Williams CT166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the A4 Transporter if...
- you want one that is 115kg lighter empty
The A4 Transporter suits driving schools, small dealers and enthusiasts who need to move one car at a time behind a car-derived tow vehicle, offering a simple twin-axle bed without the cost of a beavertail or enclosed body. Its compact size makes it easier to store and manoeuvre than the longer trailers in the A Transporter range.
Listed by
- Compass Trailers - Lewes, Ringmer
- Saxons Trailers - Westerham, Biggin Hill
- R M Trailer Centre - Middlesbrough, North Ormesby
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the CT166 if...
- you want one that carries 385kg more
- you want one that is rated 500kg heavier gross
- you want one that has a bed 37cm (1ft) longer
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 Brian James A4 Transporter and the Ifor Williams CT166?
The Ifor Williams CT166 carries 385kg more and is rated 500kg heavier gross. The Brian James A4 Transporter is 115kg lighter empty. The Brian James A4 Transporter is a twin-axle open car transporter trailer from Brian James' A Transporter range, built for towing one car on a 4.5m bed.; the Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer.
Which is lighter, the Brian James A4 Transporter or the Ifor Williams CT166?
The Brian James A4 Transporter. It is 115kg lighter empty than the Ifor Williams CT166.
Which carries more, the Brian James A4 Transporter or the Ifor Williams CT166?
The Ifor Williams CT166, by 385kg.
Can I tow the Brian James A4 Transporter 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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