Engine: front mounted, based on Fiat 500; cast-iron block, light alloy head
Cylinders: 4
Bore and stroke: 52 x 67 mm
Capacity: 569 cc
Max output: 28b hp at 6000 rpm
Lubrication: full pressure by submerged gear-type oil pump
Cooling: thermo-syphon circulation
Valve gear: pushrods
Fuel feed: 1 Weber carburetor
Ignition: coil and distributor
Clutch: single dry-plate
Gearbox: 4 forward speeds + reverse
Chassis: cruciform-braced frame with deep channel section side and cross members, based on Fiat 500
Front suspension: independent, lower A arms with upper transversal leaf spring, friction shock absorbers (later hydraulic telescopic shock absorbers)
Rear suspension: live axle with semi-elliptic springs and friction shock absorbers (later hydraulic telescopic shock absorbers)
Brakes: drums
Wheelbase: 2000 mm (2020 mm since 1953
Tracks: front 1114 mm, rear 1083 mm
Tire size:front 4.00-15 (4.25-15); rear 4.25-15 (4.25-15)
Body: two seater-roadster (with or without hard-top), built of aluminium; motorcycle-type mudguards fitted since 1947
Dry weight: 480 kg
Production period: 1938-1948