Distinguished, after the Regina, by its hooded headlights it was Daimler's last car to use their fluid flywheel transmission.

The Regina DF400 and DK400 chassis was generally equipped with steel limousine bodywork by Carbodies (identified as DK400B) with a drop division, three occasional seats and more luxurious trim in the rear compartment than in the DK400A owner-driver car.

The Regina limousine was shown at the Earls Court Show in October 1954 and then described as being built on a special edition of the Regency chassis.

[5] It was replaced in the Majestic by a more modern Borg-Warner fully automatic transmission which required modification of the engine and crankcase castings.

[10] A 4-door all-weather tourer by Hooper, body 10236 on chassis 92724, was specially designed and constructed for Mohammed Zahir Shah, King of Afghanistan.