The AEC Regal VI was first seen at the 1960 Commercial Motor Show and was intended to be a purely export chassis. It was really just an updated version of the underfloor-engined Regal IV, having an 11.3-litre AH690 engine instead of the Regal IVs 9.6-litre AH590 engine. It was available in both left and right hand drive versions, other options included power assisted steering and air suspension. South America saw the largest orders for the Regal VI, two orders totaling 150 were destined for the Montevideo area of Uruguay and a larger order of 500 came from Buenos Aires, Argentina.