[2] The cruiser line led to the Cromwell and its 17 pounder-armed Challenger variant, eventually followed by the Comet equipped with the 77 mm gun firing similar ammunition to the 17 pounder.

The Black Prince weighed around ten tons more than the Churchill so the suspension was modified and the tracks widened by 10 inches to carry the extra load.

[2] By the time the Black Prince prototypes had appeared in May 1945, the 17-pounder armed Sherman Firefly had proved itself in combat, the Comet tank was in service and the introduction of Centurion was imminent.

All these tanks carried the QF 17-pounder or an equivalent; all had better mobility than the Black Prince and the Centurion had frontal armour of comparable effectiveness.

The only intact Black Prince is held by The Tank Museum in Bovington, UK; it is the fourth of the six prototypes that were built.