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Lamborghini Countach Prototype

(1971 model)

Brief specs of 1971 Lamborghini Countach Prototype

2-door 2-seater fixed-head coupé, petrol (gasoline) 12-cylinder 24-valve V engine, DOHC (double overhead camshafts, twin cam), 4971 cm3 / 303.3 cu in / 303.3 cu in, 328.1 kW / 440.0 hp / 440.0 hp @ 7400 rpm / 7400 rpm / 7400 rpm, 448.0 N·m / 330.4 lb·ft / 330.4 lb·ft @ 5750 rpm / 5750 rpm / 5750 rpm, manual 5-speed transmission, rear wheel drive, 306 km/h / 190 mph / 190 mph top speed

units: metric UK US

Basic (general) data

Marque (make)LamborghiniIssued from1971
ModelCountach PrototypeIssued until
SerieCountachNumber made
Model familyBody construction
Model codeBody designation
ManufacturerAutomobili Lamborghini SpACountryIT

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2
Bodywork designerBertoneCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4100 mm / 161.4 in / 161.4 inTotal (curb) weight1130 kg / 2491 lb / 2491 lb
Width1850 mm / 72.8 in / 72.8 inDry weight
Height1040 mm / 40.9 in / 40.9 inLoad capacity
Wheelbase2464 mm / 97.0 in / 97.0 inGross (max.) weight
Track front1500 mm / 59.1 in / 59.1 inTowing weight
Track rear1520 mm / 59.8 in / 59.8 inWeight distribution (front)
Ground clearanceFuel capacity140 l / 30.8 UK gal / 36.9 US gal
Length/wheelbase ratio1.66  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.64 m2 / 17.6 sq ft / 17.6 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders12
Engine TypeV engine Total number of valves24
Engine ManufacturerLamborghiniValves per cylinder2
Engine constructionlight alloy block & headBore85.0 mm / 3.35 in / 3.35 in
Fuelpetrol (gasoline)Stroke73.0 mm / 2.87 in / 2.87 in
Fuel detailsBore/Stroke ratio1.16
Fuel supply6 We carbsEngine displacement4971 cm3 / 303.3 cu in / 303.3 cu in
Engine Main bearings7Unitary capacity414.25 cm3/cylinder / 25.279 cu in/cylinder / 25.279 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio10.5 : 1
SumpMax. output power328.1 kW / 440.0 hp / 440.0 hp at 7400 rpm / 7400 rpm / 7400 rpm
AspirationnaturalMax. torque448.0 N·m / 330.4 lb·ft / 330.4 lb·ft at 5750 rpm / 5750 rpm / 5750 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)131.2 kW / 176.0 hp / 176.0 hp (est.)
CoolantwaterSpecific output66.0 kW/l / 1.450 bhp/cu in / 1.450 bhp/cu in
Catalytic converternoSpecific torque90.1 N·m/l / 0.79 lb·ft/cu in / 0.79 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed306 km/h / 190 mph / 190 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio389.4 kW/ton / 295.0 bhp/ton / 295.0 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationmiddleEngine alignmentlongitudinal
Steeringrack & pinionSteering details
Turns lock-to-lockTurning circle
Suspension frontIndependent, Coil springsSuspension rearIndependent, Coil springs
Wheels frontWheels rear
Tyres front205/70 VR 14Tyres rear215/70 VR 14
Brakes frontventilated discBrakes rearventilated disc
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Lamborghini Countach Prototype

Infobox

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