The Sturer Emil (Stubborn Emil) was an experimental World War II German self-propelled anti-tank gun. It was based on the Henschel VK30.01 chassis and armed with a Rheinmetall 12.8 cm K L/61 gun (based on the 12.8 cm FlaK 40).
Two vehicles (named Max and Moritz) were built, both of which served on the Eastern Front. One vehicle was destroyed, the other captured at Stalingrad in January 1943, with 22 kill marks painted on the barrel. This captured vehicle is now displayed in the collection on the Kubinka Tank Museum.