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Miura Roadster or Zn75 - the SPECS

Miura Roadster or Zn75

Last update on April 26. 2015 in Miura.

General

Type

Miura Roadster or Zn75

Years built

1968

Production

1 units

Chassisnr.

3498

Presentation

1968 Brussels Auto Show, Zn75 in December 1970 in Paris

Type of car

Two door, two seater with targa-style roof construction

Designed by

Bertone, Marcello Gandini

Built by

Bertone, modified by the ILZRO

Dimensions

Wheelbase

2504 mm / 98.41 in

Overall length

3470 mm / 136.37 in

Overall width

1760 mm / 69.17 in

Overall height

1050 mm / 41.27 in

Front track

1412 mm / 55.49 in

Rear track

1412 mm / 55.49 in

Ground clear.

130 mm / 5.11 in

Front overhang

933 mm / 36.67 in

Rear overhang

933 mm / 36.67 in

Weight

1000 kg / 2205 lbs

Chassis

Structure

Sheet-steel unitized body, lightened welded box sections by Bertone

Body

Monocoque steel construction with aluminum front and rear sections

Suspension

All-independent, consisting of double transverse wishbones with coil springs, telescopic shock absorbers and anti-roll bars

Brakes

All-wheel power-assisted Girling disc brakes, hydraulically operated via a dual circuit system

Front

305 mm / 11.99 in

Rear

280 mm / 11 in

Steering type

Unassisted rack and pinion, 3.4 turns lock to lock

Turning circle

11.2 m / 37 ft

Front tire size

HS 205-15

Rear tire size

HS 205-15

Type of tire

Pirelli Cinturato Belted

Front wheel

7x15 inch

Rear wheel

7x15 inch

Type of wheel

Campagnolo cast magnesium on original Bertone prototype Modified wheels were mounted after the ILZRO acquired the car.

Engine

Type

V-12 60 degree, light-alloy block with gearbox and differential built in the same block and pressed-in liners mid mounted, rear wheel drive

Distribution

Dual overhead camshafts, chain drive, two valves/cyl.

Main Bearings

7

Cyl.Capacity

3939 cc / 240 ci

Bore & stroke

82 x 62 mm

Compr. Ratio

9.5

Max. power

350 Bhp at 7000 rpm

Max. torque

369 Nm at 5100 rpm

Cooling system

Cross-flow radiators and twin electric fans

Ignition

Two coils and two Marelli distributors

Plugs

Bosch 250P

Electr. system

12 V

Alternator

660 Watt

Fuel system

Dual electric Bendix fuel pumps, 4 tripple-choke Weber 40 IDA 30 carburetors

Fuel type

100 Octane

Fuel consumption

19 Lit/100 Km

Lubrication

Wet sump, common engine-transmission lubricant

Drivetrain

Type

Lamborghini all synchromesh five-speed + reverse manual

Clutch

dry-single plate, hydraulically operated

Disc diameter

266.7 mm / 10.48 in

1st gear ratio

2.520:1 - Max speed 93 Km/h or 58 Mph

2nd gear ratio

1.735:1 - Max speed 135 Km/h or 84 Mph

3rd gear ratio

1.225:1 - Max speed 188 Km/h or 117 Mph

4th gear ratio

1.000:1 - Max speed 225 Km/h or 140 Mph

5th gear ratio

0.815:1 - Max speed 280 Km/h or 174 Mph

Reverse gear ratio

2.765:1 - Max speed 0 Km/h or 0 Mph

Final drive ratio

4.08:1

Performance

Top speed

280 Km/h / 174 Mph

0 - 100 Km/h

6.60 sec.

Standing Km

24.40 sec.

1/4 Mile

14.60 sec. reaching 101 Mph

Capacities

Fuel

90 Liter / 24 Gallon

Engine oil

14 Liter / 4 Gallon

Cooling system

14 Liter / 4 Gallon

Luggage

140 Liter / 37 Gallon

Pricing

Current value

$ 8,000,000 - $ 10,000,000
Probably the most expensive Lamborghini ever next to the 350 GTV, an estimated value of US $ 10,000,000 was quoted in 2013

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