Alfa Romeo Matta

Alfa Romeo Matta

Manufacturer	Alfa Romeo
Also called	Alfa Romeo 1900M
Production	1952–1954
Layout	F4 layout
Engine(s)	1.9 L I4
Transmission(s)	4-speed manual with low ratio transfer box
Wheelbase	2,200 mm (87 in)
Length	3,520 mm (139 in)
Width	1,575 mm (62.0 in)
Height	1,820 mm (72 in)
Curb weight	1,250 kg (2,756 lb)
Related	Alfa Romeo 1900

The Alfa Romeo Matta (known officially as the Alfa Romeo 1900M) is a 4x4 off-road vehicle. There were two different versions made, the AR51 and the AR52 (Autovettura da Ricognizione, (Reconnaissance Vehicle or "Scout Car")). The AR51 was produced for the Italian army and the AR52 was the same car, but intended for civilian use. The Matta had a 1884 cc 65 PS (48 kW/64 hp) twin cam engine with dry sumped lubrication. The Matta was built on a separate chassis which is similar to the setup on most off-road vehicles.

The Matta was built from 1952 to 1954, with 2007 AR51 and 154 AR52 units produced. In 1954, the Italian army abandoned the AR51 and switched to the Fiat Campagnola, which was technically simpler.

Technical data 1900 M AR 51 - AR 52

Engine:	4-cylinder-inline engine (four-stroke), front-mounted
Displacement:	1,884 cc (115.0 cu in)
Bore x Stroke:	82.5 mm (3.2 in) x 88 mm (3.5 in)
Max. Power @ rpm:	65 PS (47.8 kW/64.1 bhp) @ 4400
Max. Torque @ rpm:	12.5 kg·m (123 N·m/90 ft·lbf) @ 2500
Compression Ratio:	7:1
Fuel system:	1 Solex carburetor 33 PBIC, mechanical fuel pump
Valvetrain:	DOHC, double chain
Cooling:	Water
Gearbox:	4 forward, 1 reverse + dual range
Front suspension:	Independent front suspension with double unequal length wishbones
Rear suspension::	Live rear axle
Brakes:	Hydraulic drum brakes, mechanical handbrake on driveshaft
Body:	Steel body with separate ladder chassis
Track front/rear:	1,300 mm (51.2 in) / 1,300 mm (51.2 in)
Wheelbase:	2,200 mm (86.6 in)
Length x Width x Height:	3,520 mm (138.6 in) x 1,575 mm (62.0 in) x 1,820 mm (71.7 in)
Ground clearance:	20.5 cm (8.1 in)
Max water deep:	70 cm (27.6 in)
Max slope:	120% (50 °)
Weight:	1,250 kg (2,755.8 lb)
Top speed:	105 km/h (65.2 mph)

External links

• alfamatta.co.uk
• registroalfaromeomatta.it