Key facts

1991 Alfa Romeo Proteo Concept information summary

What body style?
convertible/cabriolet with 2 seats
How long?
4148 mm
How heavy?
1467 kg
What size engine?
3 litre, 2959 cm3
How many cylinders?
6, V
How much power?
264 PS / 260 bhp / 194 kW
How much torque?
How fast?
249 km/h, 155 mph

Alfa Romeo

Alfa Romeo logo -

Alfa Romeo logo

Alfa Romeo Automobiles SpA

1991 Alfa Romeo Proteo technical specifications


The Alfa Romeo Proteo is a convertible/cabriolet with 2 doors and a front mounted powerplant which transmits the power through all four wheels.
The 3 litre engine is a naturally aspirated, double overhead camshaft, 6 cylinder unit that develops 260 bhp (264 PS/194 kW) of power.
The engine delivers its power through to the wheels via a 5 speed manual 'box.
The claimed kerb weight is 1467 kg.
Maximum speed quoted is 249 km/h or 155 mph.
1991 Alfa Romeo Proteo data
1991 Alfa Romeo Proteo Concept data
Body type2 seater convertible/cabriolet
Number of doors2
dimensions & weights
Track/tread (front)
Track/tread (rear)
Length 4148 163.3
Ground clearance
length:wheelbase ratio
Kerb weight 1467 kg 3234 lb
Weight distribution
fuel tank capacity
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Alfa Romeo
Engine code
Cylinders V 6
Capacity 3 litre
2959 cc
(180.569 cu in)
Bore × Stroke 93 × 72.6 mm
3.66 × 2.86 in
Bore/stroke ratio 1.28
double overhead camshaft (DOHC)
4 valves per cylinder
24 valves in total
maximum power output 264 PS (260 bhp) (194 kW)
Specific output 87.9 bhp/litre
1.44 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio
Fuel system
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings 4
Engine coolant Water
Unitary capacity 493.17 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 249 km/h (155 mph)
Power-to-weight ratio 179.7 PS/g
132.16 kW/g
177.23 bhp/ton
0.08 bhp/lb
Weight-to-power ratio 7.57 kg/kW
12.64 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 front
Engine layout longitudinal
Drive wheels all wheel drive  
Torque split N/A
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Gearbox 5 speed manual
Top gear ratio
Final drive ratio
general ID19558
Production total
Model code
Model family Concept
RAC rating 32.2
Insurance classification No information available
Tax band No information available
1991 Alfa Romeo Proteo added before December 1995.
Last modified 2013-02-28.

View in any of these languages:


Using this content requires that you credit as the source.
Please use the following link and anchor text:
1991 Alfa Romeo Proteo

World Car Specifications