|Engine Power (hp)||350|
|Speed Limit (km/h)||65|
|Standard Shell Penetration (mm)||109 - 147|
|Standard Shell Damage||120 - 200|
|Rate of Fire (rounds/min)||9.9|
Development started in 1942. In April 1943 the General Motors company produced the first prototypes. One of a few American tank destroyers manufactured on its original chassis, not on a tank chassis. The tank destroyer became the fastest armored vehicle, of this type, of World War II. A total of 2,507 vehicles were produced from July 1943 through October 1944.