Koenig Specials GmbH (known widely as Koenig) is a German tuning house based in Munich that specialised in modifications to European luxury cars but gained notability in the 1980s and 1990s for their performance modifications to Ferraris. Some of its most notable works included a twin-turbo Ferrari Testarossa with extensive body modifications that made it resemble a Ferrari F40 (known as the Koenig Competition and in revised form Koenig Competition Evolution) that produced up to a claimed 1,000 PS DIN in "Evolution" guise, a highly unusual output for cars at the time, as well as the 850 PS DIN Ferrari F50. Koenig also entered into automobile production with its road-going version of the Porsche 962 known as the Koenig C62, therefore becoming the first road-legal Group C-based car.