Footnotes

• "The goal was not just to be different, to satisfy the incessant desire for more polarising concept cars. We built real cars with unique tangible solutions. Timeless in their execution, imbued by our desire to push innovation forward." – Isdera AG.
  
  Supercars don't get much rarer or more exclusive than this Isdera Imperator 108i, which is the only one exported new to Japan out of a total of only 30 produced in both series. The Imperator 108i was born out of the Mercedes-Benz CW311 concept car of 1978, which Eberhard Schulz, who had worked as a design engineer for Porsche, designed in his free time. Mercedes had no interest in putting the CW311 into production but did not stand in Schulz's way when he established his own company, Isdera, to produce the car. Founded in Leonberg, Germany in 1981, the firm takes it name from the portmanteau for 'Ingenieurgesellschaft für Styling, Design und Racing' (Engineering Company for Styling, Design and Racing). Schulz's first vehicle design, the Erator GTE, had appeared in 1969 and the first model produced by Isdera would be the Spyder 033 of 1982.
  
  The Imperator 108i was produced to individual customer order from 1984 to 1993. Little was changed from the CW311 concept car, the most noticeable alterations being fixed headlights, replacing the original pop-ups, and more conventional taillights, the latter sourced from Mercedes-Benz. Featuring gullwing doors, the glassfibre body was bonded to a tubular steel spaceframe, and like the early Lamborghini Countach employed a rear-view periscope in place of a conventional mirror. Inside, the luxurious interior incorporated components sourced from the Porsche 928.
  
  The original Imperator 108i was powered by a 5.0-litre, 296bhp Mercedes-Benz M117 V8 engine, driving via a ZF five-speed manual gearbox. A top speed of 283km/h was claimed, with the 0-100 km/h dash achieved in 5.1 seconds. Other Mercedes-Benz engines were used in later examples. The Imperator's suspension was pretty much the norm for a 1990s supercar: coil-sprung independent all round by double wishbones at the front, with upper and lower transverse links at the rear. There were, of course, disc brakes all round and the Imperator came with power-assisted steering as standard. In 1991, the Imperator received a facelift that saw pop-up headlights return and the body restyled along less angular, more curvaceous lines. Vents were added above the front wheel arches and the wide bonnet scoop replaced with a single offset NACA duct. At the same time the front grille was redesigned, and the front indicators moved to the wing extremities. Published figures vary with regard to how many of these 'Series 2' cars were made, ranging from 13 to 17.
  
  An exclusive supercar for the connoisseur, the 'Series 2' example offered here was built in left-hand drive configuration and the Japanese customer chose Mercedes-Benz's traditional 'Silver Arrows' livery for his car, contrasting with the black leather interior. Little else is known of this Imperator's history prior to its registration in the UK on 1st December 2016 (UK V5C document available). The car was subsequently sold to the current vendor in Germany and partially restored by MePoRes F. Ulbricht GmbH in October 2017 and Fehr Sportscars Germany at a cost of about €130.000. Their detailed invoice is on file and the car also comes with various subsequent service invoices and Isdera's dating letter signed by Eberhard Schulz himself. A guaranteed head-turner at any gathering, this beautiful Isdera Imperator represents possibly a once-in-a-lifetime opportunity to own one of the most exclusive supercars of recent times.