Further development of the 125 began in the year of its debut, 1947. Its displacement was first upped from 1,500 cc to 1,900 cc, and the resulting model was christened the 159 as the cars took their names from their engine’s single cylinder displacement.

As with the 125, the first version of the car was known as the 159 S and it made its debut at Pescara in the hands of Franco Cortese who finished second overall. The later 159 C version competed in the last race of the season in Modena but Cortese once again had to retire.

The cars’ technical characteristics remained mostly unchanged with the exception of the overall displacement and, of course, engine power.

Type front, longitudinal 60° V12
Bore/stroke 59 x 58 mm
Unitary displacement 158,57 cc
Total displacement 1902,84 cc
Compression ratio 8,5 : 1
Maximum power 92 kW (125 hp) a 6500 rpm
Power per litre 66 hp/l
Maximum torque -
Valve actuation single overhead camshaft per bank, two valves per cylinder
Fuel feed three Weber 32 DFN carburettors
Ignition single spark plug per cylinder, two magnetos
Lubrication wet carter
Clutch single-plate
Frame tubular steel
Front suspension independent, unequal-length wishbones, lower transverse leaf spring, hydraulic shock absorbers
Rear suspension rigid axle, longitudinal half elliptic leaf spring, hydraulic dampers, anti-roll bar
Brakes drums
Transmission 5-speed + reverse
Steering worm and sector
Fuel tank capacity 72 litres
Front tyres 5.50 x 15
Rear tyres 5.50 x 15