Speed. Courage. Performance.That’s what a 55 years old slogan says. Pretty hard to argue with that. The time for standing by and watching the little MINI was about to end. Something had to be invented and that’s how the A112 was born. The spicy Abarth version represents one of the most interesting examples of a performance-focused reinterpretation of a car originally conceived for utilitarian purposes. Derived from the Autobianchi A112, introduced in 1969, the version developed by the Scorpion brand debuted in 1971 and remained in production — through successive evolutions — until the mid-1980s. Over this period, the A112 Abarth not only followed the evolution of the standard model but also became a technical benchmark in the segment of front-wheel-drive hot-hatches.

From a design standpoint, the starting point was a compact monocoque body, less than 3.3 meters in length, with a wheelbase of about 2,038 mm and a curb weight that, in the earliest versions, stop at around 700 kg. These figures formed a fundamental premise for the Abarth approach, which favored mass reduction and an improved power-to-weight ratio over a sheer increase in absolute performance. The weight distribution, heavily biased toward the front axle, was typical of transverse-engine, front-wheel-drive economy cars, but it was partially offset by careful tuning of the suspension and tires. Today, this mindset is pure utopia.

The first A112 Abarths adopted an inline four-cylinder engine of 982 cc, derived from the FIAT SOHC family, capable of delivering about 58 hp at engine speeds considered pretty high for the era. Even this figure represented a significant increase over the standard versions, but it was with the evolution of engine displacement that the project fully revealed its potential. In 1975, the 1,050 cc version was introduced, initially rated at around 70 hp, a figure that would gradually rise to 72 hp in the final series thanks to continuous refinements to the valvetrain, induction and exhaust systems.

Abarth’s work on the engine was classic in nature yet extremely rational: increased compression ratio, camshafts with more aggressive profiles, larger dual-choke carburetors and optimized intake ports to promote volumetric efficiency at high engine speeds. The result was an engine that favored revs and demanded careful attention to engine speed from the driver, with a specific output exceeding 65 hp per liter — an outstanding figure for a naturally aspirated small-displacement unit of the 1970s.

The transmission played a decisive role in exploiting these characteristics. The manual garbo — four-speed in the early versions and later five-speed — featured relatively close ratios, combined with a short final drive that penalized top speed (around 160 kph in the most powerful versions) but greatly enhanced acceleration and in-gear response. 0–100 was covered in roughly 10 seconds, a remarkable figure when related to displacement and vehicle class. And if you wrinkle your nose at that, it hardly matters — this car has no love for petrol-snobs.

The chassis retained the layout of the standard A112, with MacPherson struts up front and a torsion-beam rear axle with coil springs. Abarth stiffened the springs and dampers and introduced more effective anti-roll bars, achieving a noticeable reduction in body roll and a sharper response for load transfers. The short wheelbase and narrow track widths made the car extremely agile, especially on twisty roads, while the dynamic limit was characterized by progressive understeer that could turn into a slight lift-off oversteer during more aggressive driving.

The braking system, with front discs and rear drums, was adequate for the car’s performance and weight. In spirited  situations — particularly during competition — fade resistance became a critical factor, which is why many race versions adopted specific friction materials and improved cooling systems. The absence of a brake booster in the early series contributed to a more direct pedal feel, appreciated by more experienced drivers.

Inside, the cabin reflected a functional, driver-focused philosophy. Additional instrumentation, a smaller-diameter steering wheel and seats with greater lateral support than those of the standard versions improved control, while limited sound insulation allowed the driver to clearly perceive engine speed and load — useful in a racing context and a real X factor when driving hard even without a stopwatch in hand.

It is in motorsport, however, that the A112 Abarth fully demonstrated the validity of the project. From the early 1970s, it was used in national rallies, hill climbs and circuit races reserved for small-displacement cars. Its low weight, mechanical robustness and relatively modest costs made it ideal for one-make trophies and lower-class touring car categories. The Abarth achieved numerous class victories in Italian and European rallies and became a constant presence in hill climbs, where agility and mid-range torque proved decisive advantages.

Competition versions, lightened under 650 kg, adopted engine preparations that pushed power well beyond 80 hp while retaining the original architecture. In this context, the car also took on an important educational role, serving as a testbed for young drivers and technicians thanks to its honest dynamic behavior and relatively simple mechanicals that were easy to analyze and tune. The inherent limits of the platform — restricted space, minimal passive safety, front-wheel drive — were offset by careful setup and a favorable power-to-weight ratio. It is precisely this engineering rationality, applied to a widely produced car, that made the A112 Abarth one of the most significant small sports cars of its era, both on the road and in competition. The fact that you can find them by the bucketload at virtually any hill climb you might attend only reinforces the theory that lightness matters more than sheer power.

Words Carlo Brema / Photos Abarth (Stellantis media)