Isdera Commendatore 112i 408 HP

    Description

    Since the production of the Isdera Imperator 108i was coming to an end, work began on the development of a new model. In 1989, the first clay models took shape. The new car was named Commendatore 112i in honor of Enzo Ferrari. Ferrari was awarded the title Commendatore, which means knight commander in Italian.

    In 1991, the Isdera Commendatore 112i, powered by the Mercedes-Benz M 120E engine, was first announced at the Frankfurt Motor Show (first used in the Mercedes-Benz C112 concept, and then in the Mercedes-Benz S-Class (W140) and SL600 production models, as well as Pagani Zonda), which, with a working volume of 6.0 liters, produced 408 hp. and torque 540 N∙m. With this engine, the car was supposed to accelerate to hundreds in 4.8 seconds, and reach a maximum speed of 320 km/h, with a curb weight of 1400 kg.

    Many parts and components were borrowed from production cars such as Mercedes-Benz and Porsche as a result of Eberhard Schulz's work at Porsche and collaboration with Mercedes-Benz. For example, the suspension was taken from a Porsche 928, the headlights from a Porsche 968, and the engine and interior parts from a Mercedes-Benz.

    The body architecture of the Commendatore 112i is typical for this kind of supercars of its time – a fiberglass body on a steel space frame with a mid-engine rear-wheel drive layout.

    Car suspension on double wishbones with anti-roll bars front and rear. BBS forged compound racing wheels on a 8.5J×18 center nut front and 11J×18 rear were shod in Pirelli P Zero tires. Brakes – 4-piston Brembo brake discs 330 mm front and 305 mm rear. In addition, the car was equipped with ABS and ASR systems from Porsche 928GTS and ZF power steering.

    Of the technological features - the car was equipped with gull-wing doors and a gull-wing engine cover to facilitate access to the engine. Also retained is the periscope rear view mirror from the Imperator 108i in place of the conventional side view mirrors. Of particular note is the presence of an electronically controlled rear aerodynamic brake that rises 19 degrees when the brake pedal is pressed and an active suspension modified with the help of BBS and Bilstein, which changes the car's ride height by 76 mm (3 inches) at high speeds

    In addition, the supercar had a flat bottom and a windshield wiper from a bullet train to improve aerodynamics. The long rear of the car also served to improve airflow around the car. As a result, the car showed a drag coefficient of Cx=0.306 when tested in a Mercedes-Benz wind tunnel.

    The car's interior is cramped but cozy, mostly custom-made and contained two-tone black and blue leather upholstery along with Recaro leather sports seats. The car had wide door sills, which housed two fuel tanks. The dials and other instruments (with the exception of the OMP steering wheel) were from Mercedes-Benz, and the speedometer was marked up to 400 km/h. There was also air conditioning and a high-quality audio system.

    Limited production of the Commendatore 112i was planned, like its predecessor, and it was reported that each car would take six months to complete. More than 4 million marks were invested in the development of the car by Eberhard Schulz.

    The price for the Isdera Commendatore 112i was announced at DM 500,500.

    Sources

    Bodywork
    Presentation
    Years of production
    1991
    Produced (pcs.)
    1
    Body type
    купе
    Number of doors
    2
    Number of places
    2
    Engine
    Engine type
    бензиновый
    Engine location
    центральное
    Engine model
    Mercedes-Benz M120E/60 (120.980)
    Cylinders
    V12
    V-angle
    60
    Cylinder operation
    1-12-5-8-3-10-6-7-2-11-4-9
    Capacity (cc)
    5961
    Power output (hp / kW /)
    408 /
    300 /
    at rpm
    5800
    Torque (N·m)
    540
    at rpm
    4020
    Bore (mm)
    88,5
    Stroke (mm)
    80,2
    Compression
    10,0
    Number of valves
    4/48
    Valvetrain
    DOHC
    Block material
    алюминиевый сплав
    Engine weight (kg)
    300
    Oil sump capacity (l)
    11,0
    Cooling volume (l)
    9,5
    Fuel system
    впрыск
    Fuel system model
    Bosch LH-Jetronic
    Turbocharger
    Specific
    Specific output (hp/litre)
    68,44
    Specific output (hp/tonne)
    279,45
    Specific output (kg/hp)
    3,58
    Specific torque (N·m/litre)
    90,59
    Specific torque (N·m/tonne)
    369,86
    Transmission
    Driven wheels
    задний
    Gearbox
    механическая
    Number of speeds
    5
    Final drive ratio
    3,200
    Suspension
    Front suspension
    независимая на двойных поперечных рычагах
    Rear suspension
    независимая на двойных поперечных рычагах
    Elastic elements in front
    пружины
    Elastic elements in rear
    пружины
    Wheels brand
    BBS
    Wheel size front
    8,5J×18
    Wheel size rear
    11,0J×18
    Tire brand
    Pirelli P Zero
    Tyres front
    225/35 R18
    Tyres rear
    295/35 R18
    Steering
    Steering type
    шестерня-рейка
    Power steering
    гидравлический
    Brakes specs
    Brakes front
    дисковые вентилируемые
    Brakes rear
    дисковые вентилируемые
    Front brake diameter (mm)
    332
    Rear brake diameter (mm)
    310
    Disc material
    чугун
    Number of caliper pistons (front/rear)
    Brembo
    Anti-lock braking system
    да
    Dimensions and weight
    Body
    стальной трубчатый каркас
    Body material
    стекловолокно
    Length (mm)
    4622
    Width (mm)
    1875
    Height (mm)
    1040
    Wheelbase (mm)
    2600
    Front track (mm)
    1551
    Rear track (mm)
    1546
    Ground clearance (mm)
    140
    Drag coefficien
    0,306
    Curb weight (kg)
    1460
    Max. weight (kg)
    1700
    Trunk volume max (litre)
    400
    Performance specs
    Ecological class
    Евро 2
    Fuel consumption combined (l/100 km)
    14,2
    Fuel tank capacity (l)
    109
    Fuel type
    Аи-95
    Dynamic specs
    Acceleration 0-100 kph (s)
    4,8
    Top speed (kph)
    320
    Top speed (mph)
    199
    Last modified
    02.08.2023

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