Isdera AG or Ingenieurbüro für Styling, Design und Racing (English: Engineering Company for Styling, Design and Racing) is a privately run German specialty automaker and design service provider based in Saarwellingen, with a design studio in Munich and a design subsidiary in Shanghai, China. The company was founded and formerly based in Leonberg, Germany. Each high-performance sports car is hand-built by a small team of craftsmen, and the only way to purchase a brand new Isdera was to call the CEO directly. Each vehicle is custom built for its original buyer, and a waiting period of twelve months is to be expected. History Eberhard Schulz in order to seek a job at one of the automotive companies of Germany built his own car in the garage of his home in 1969 called the Erator GTE. He drove the car to Porsche's and Mercedes-Benz's headquarters and was subsequently offered a job at Porsche in the design department in 1970. In 1978, Schultz left Porsche and joined the b&b company where he would go on to design the Mercedes-Benz CW311 concept which was touted as the successor to the Mercedes-Benz 300SL. The concept was built and promoted by b&b and had Mercedes badging after approval from the manufacturer. Isdera was founded in 1982 in Leonberg, Germany with the intent to put the CW311 into production after a deal with Mercedes-Benz. Its first car, called the Spyder which was an open top sports car based on the CW311, was presented in the same year. The Spyder was powered by a modified Mercedes-Benz Inline-4 engine generating . A new variant having an uprated 3.0-litre Inline-6 engine was introduced in 1987. The Spyder was renamed as the Spyder 033i and the Spyder 036i to indicate the difference between the offered engines and the use of electronic fuel injection in the engines (with the "i" designation). The CW311 would finally see production in 1984 as the Imperator 108i. The Imperator 108i was offered with a choice of Mercedes-Benz V8 engines having different displacements, ranging from 5.0-litres to 6.0-litres. Some engines were also tuned by AMG. The car received a facelift in 1991 which added changes in ventilation to improve cooling, some visual changes and changes to the exhaust system to pass stringent safety tests. A total of 30 Imperator 108is would be made before production ended in 1993. In 1993, Isdera designed the Commendatore 112i, which