("Hunting Panther") was a tank destroyer built by Germany during World War II based on the chassis of the Panther tank.
A heavy tank destroyer design based on the 88 mm Pak 43 gun and the Panther tank chassis was ordered in late 1942 as design SdKfz 173. Production started in early 1944; at the same time Hitler specified the Jagdpanther ("hunting panther") name.
To accommodate the gun, the sides of the Panther tank were extended up to provide a roomy interior, while maintaining a very low profile. Both the Panther Ausf. G and Jagdpanther had side armor of increased elevation to enhance this effect even further and to harmonize production.
Learn more at Wikipedia and (image courtesy of ) Achtung Panzer.