Alfa Romeo Alfa 6
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Alfa
Romeo Alfa 6
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Overview
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Manufacturer
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Alfa
Romeo
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Also called
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Alfa
Sei
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Production
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1979–1986
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Assembly
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Arese,
Milan, Italy
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Body and
chassis
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Class
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Executive
car
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Body style
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sedan
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Layout
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Front-engine,
rear-wheel-drive
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Related
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Alfa
Romeo Alfetta
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Powertrain
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Engine
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2.0
L V6 (petrol)
2.5
L V6 (petrol)
2.5
L VM HR588 I5 (diesel)
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Transmission
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5-speed
manual
3-speed
ZF automatic
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Dimensions
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Wheelbase
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2,600
mm (100 in)
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Length
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4,760
mm (187 in)
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Width
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1,680
mm (66 in)
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Height
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1,420
mm (56 in)
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Curb weight
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1,480
kg (3,260 lb) (petrol)
1,580
kg (3,480 lb) (turbodiesel)
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Chronology
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Successor
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Alfa
Romeo 2600
Alfa
Romeo 90
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History
On its launch in 1979, the Alfa 6 was the flagship of the Alfa Romeo range. The four-door body was fairly conventional and used a similar style to the existing Alfa Romeo Alfetta, and in fact both vehicles share a great number of parts, including door panels; Design work on the 6 was done prior to the Alfa Romeo Alfetta, but the fuel crisis of 1973 delayed further development and led to the 6's belated 1979 debut. The styling was not particularly aerodynamic but the drag coefficient was a somewhat respectable 0.41. Power came from an all-new 2.5 V6 engine which generated 158 PS (116 kW; 156 hp) at 5600 rpm using a total of six carburettors and a single, belt driven camshaft in each cylinder head. Power steering, power windows, central locking, electric wing mirrors and a 25% limited slip differential were standard, making the Alfa 6 competitively priced compared to similar saloons of that time where such equipment typically was a costly extra. The car was also designed to set new standards in safety; for example it featured a shock sensor in the boot which would cut off the fuel supply in the event of a crash.
The engine and gearbox were situated at the front and a limited slip differential at the rear. The 6 was fitted with four disc brakes, with the rear ones inboard, to reduce unsprung weight. The 6 has de Dion tube at the rear and it has independent front corners, the gearbox was also located in the front. A three speed automatic transmission from ZF was available as an option, the ZF hydraulic power steering was the first to be fitted to an Alfa Romeo.
Facelift
In 1983, the car was revamped, with single rectangle headlights replacing the twin round units, new bumpers, a new grille and new trim around the rear lights. Minor interior changes were also carried out, whilst mechanically the engine's troublesome six carburettors were replaced by Bosch L-Jetronic fuel injection, with the power remaining at 158 PS (116 kW; 156 hp). This revamp also saw the introduction of two new engines, a 2.0 version of the existing V6 engine (which retained the carburettors and was specific for the Italian market, where engines larger than two liters were heavily taxed) and a 2.5 litre VM 5 cylinder turbodiesel.
The Bertone Delfino concept car in 1983 was based on Alfa 6.
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Engines
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Model
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Engine
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Displacement
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Power
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Torque
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Years
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Petrol engines
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Alfa 6 2.0 V6
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V6
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1,997 cc (6 single
Dell'Orto carburetors)
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99 kW (135 PS) at
5,600 rpm
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178 Nm (131 lbft) at
4,500 rpm
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1983–1986
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Alfa 6 2.5
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V6
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2,492 cc (6 single
Dell'Orto carburetors)
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118 kW (160 PS) at
5,800 rpm
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219 Nm (162 lbft) at
4,000 rpm
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1979–1982
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Alfa 6 2.5 V6 QO
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V6
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2,492 cc (Bosch
L-Jetronic)
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116 kW (158 PS) at
5,600 rpm
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215 Nm (159 lbft) at
4,000 rpm
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1983–1986
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Diesel engine
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Alfa 6 2.5 TD
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I5
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2,494 cc VM turbodiesel
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77 kW (105 PS) at
4,300 rpm
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206 Nm (152 lbft) at
2,400 rpm
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1983–1986
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Statistics
Total built: 12,070
- With carburetted 2.5 litre V6 petrol engine: 5,748
- With fuel injected 2.5 litre V6 petrol engine: 1,574
- With 2.0 litre V6 petrol engine: 1,771
- With 2.5 litre VM turbodiesel engine: 2,977
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