Ferrari 125 S

Ferrari 125S

This was the very first car to wear the Ferrari badge. The V12 engine was designed by Gioacchino Colombo with contributions from Giuseppe Busso and Luigi Bazzi.

Sport and competition versions of the 125 S were built with different bodywork although the chassis and running gear of the cars remained basically identical.

The 125 S’s debut was on the Piacenza circuit, over the following four months, the 125 S returned to the track 13 times, winning six of its races.

Both of the two 125 S cars built in 1947 were dismantled, and their parts are thought to have been re-used in production of the 159 or 166 models.

All 1940 Models:-

Production Decade Production Year Ferrari Model Ferrari Model Type
1940 1947 Ferrari 125 S Sport Prototypes
1940 1947 Ferrari 159 S Sport Prototypes
1940 1948 Ferrari 166 Inter GT
1940 1948 Ferrari 166 S Sport Prototypes
1940 1948 Ferrari 166 Inter Sport Sport Prototypes
1940 1948 Ferrari 166 MM Sport Prototypes

Ferrari 125 S Technical Specifications

Year of Manufacture – 1947

type anteriore, longitudinale, 12V 60°
bore/stroke 55 x 52.5 mm
unitary displacement 124.73 cc
total displacement 1496.77 cc
compression ratio 9.5 : 1
maximum power 87 kW (118 hp) at 6800 rpm
power per litre 79 hp/l
maximum torque
valve actuation single overhead camshaft per bank, two valves per cylinder
fuel feed three Weber 30 DCF carburettors
ignition single spark plug per cylinder, two magnetos
lubrication wet sump
clutch single-plate
frame tubular steel
front suspension independent, unequal-length wishbones, transverse leaf spring, hydraulic shock absorbers
rear suspension live axle, semi-elliptic springs, hydraulic shock absorbers, anti-roll bar
brakes drums
transmission 5-speed + reverse
steering worm and sector
fuel tank capacity 72 litres
front tyres 5.00 x 15
rear tyres 6.00 x 15
type two-seater spider
wheelbase 2420 mm
front track 1240 mm
rear track 1240 mm
weight 650 kg (dry)
top speed 210 km/h
acceleration 0-100 km/h
0-400 m
0-1000 m
motore anteriore, longitudinale, 12V 60°

Ferrari 125 S Valuations

There are no original 125 S models in existence – which is a tremendous shame.

Recently, the chassis with serial number 010I was used in the restoration of a 125 S. The story goes that 01C was re-stamped as 010I, and sold to a customer as a new car.

Upon taking receipt of the car, the new owner immediately exclaimed, muletto!, which means “Test mule” in Italian, as he could clearly see that his supposedly new car was in fact a used, well-raced car.

Ferrari made a new invoice for the car, including a considerable rebate given the car’s second-hand nature.

Both the 125 S models were broken down and used towards some of the early 159 and 166 models.

01c Still in 166 Spyder Corsa configuration, the car was recently sold to Symbolic Motors. Close inspection of the chassis and its serial number led to the discovery of an old stamping that could possibly read 01C. It had been covered by an aluminum plate which bore the serial number 010I.

Subsequently, the car was sold to its current owner, who refitted the chassis with a body similar to the factory’s 125 S replica, which was built by Michelotto in 1987.

The alleged 01C made its public debut at the Pebble Beach Concours d’Elegance, and was entered as a “Ferrari 125 S”. The car continues to be the subject of much debate among Ferrari historians and enthusiasts; recent developments indicate that the re-stamped serial number was in fact a correction and not an alteration.

Ferrari 125 S Servicing