• Fiat X1-9

    Fiat X1-9 -

    Image courtesy of Fiat

Key facts

Fiat X1-9, 1979 MY information summary

What body style?
fixed-head coupé with 2 seats
How long?
3980 mm
How heavy?
914 kg
What size engine?
1.5 litre, 1498 cm3
How many cylinders?
4, Straight
How much power?
86 PS / 85 bhp / 63 kW @ 6000 rpm
How much torque?
118 Nm / 87 / 12 kgm @ 3200 rpm
How quick?
0-60 mph: 10.4 s
How fast?
180 km/h, 112 mph


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1979 Fiat X1-9 technical specifications


The Fiat X1-9 is a coupé designed by Bertone with 2 doors and a mid mounted engine which transmits its power through the rear wheels.
It's powered courtesy of a naturally aspirated engine of 1.5 litre capacity. This unit features single overhead camshaft valve gear, 4 cylinder layout, and 2 valves per cylinder. It has an output of 85 bhp (86 PS/63 kW) of power at 6000 rpm, and maximum torque of 118 N·m (87 lb·ft/12 kgm) at 3200 rpm.
The power is transmitted to the wheels via a 5 speed manual gearbox.
With a stated kerb weight of 914 kg, the Fiat X1-9 can dispense with the 0-60 mph dash in 10.4 seconds and the standing-start quarter mile in 17.8 seconds.
The Fiat X1-9 is claimed to achieve a maxiumum speed of 180 km/h or 112 mph.
1979 Fiat X1-9 data
Fiat X1-9, 1979 MY data
Body type2 seater fixed-head coupé
Number of doors2
dimensions & weights
Wheelbase 2202 86.7
Track/tread (front) 1359 53.5
Track/tread (rear) 1355 53.3
Length 3980 156.7
Width 1567 61.7
Height 1143 45
Ground clearance 125 4.9
length:wheelbase ratio 1.81
Kerb weight 914 kg 2015 lb
Weight distribution 40.2 % front
fuel tank capacity 50 litres 11 UK Gal 13.2 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Fiat
Engine code
Cylinders Straight 4
Capacity 1.5 litre
1498 cc
(91.414 cu in)
Bore × Stroke 86.4 × 63.9 mm
3.4 × 2.52 in
Bore/stroke ratio 1.35
single overhead camshaft (SOHC)
2 valves per cylinder
8 valves in total
maximum power output
86 PS (85 bhp) (63 kW)
at 6000 rpm
Specific output
56.7 bhp/litre
0.93 bhp/cu in
maximum torque
118 Nm (87 ft·lb) (12 kgm)
at 3200 rpm
Specific torque
78.77 Nm/litre
0.95 ft·lb/cu3
Engine construction
compression ratio 9.2:1
Fuel system 1 We carb
bmep (brake mean effective pressure) 989.9 kPa (143.6 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 374.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph 10.4 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile 17.8 s
Standing kilometre
Maximum speed 180 km/h (112 mph)
Power-to-weight ratio 94.29 PS/g
69.35 kW/g
93 bhp/ton
0.04 bhp/lb
Weight-to-power ratio 14.42 kg/kW
24.09 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per litre
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position mid
Engine layout transverse
Drive wheels rear wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock 3.100
Turning circle 10.00 m
Front suspension I.MS.CS.
Rear suspension I.MS.CS.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R Di/Di-S
Front brake diameter
Rear brake diameter
Gearbox 5 speed manual
Top gear ratio 0.86
Final drive ratio 4.08
general ID37609
Production total
Model code
Model family
RAC rating 18.5
Insurance classification No information available
Tax band No information available
1979 Fiat X1-9 added before December 1995.
Last modified 2013-02-28.

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1979 Fiat X1-9

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