(Not to be confused with Koenigsegg.) 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 (known as the Koenig Competition) that produced 1,000 bhp, a highly unusual output for cars at the time, as well as the 850 bhp 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.