Was basically an uparmored Cruiser Mk III. Additional armor plates were added to the nose, glacis, and turret front, plus spaced armor on the sides of the turret. The additional armor on the turret was hollow and shaped like a V.
While in the desert some had additional armor plates added.
Cruiser Mk IV, A13 Mk II: 655
Production: December 1938 - 1941
Manufacturer: Nuffield, LMS, Leyland, English Electric