Youngtimer Challenge at the Nürburgring: Alfa Romeo 156 2.5 V6 vs Audi A4 2.8 V6 Quattro

Cuore Sportivo — "Souls and Hearts of Alfa Romeo" series. An imagined dry-track duel between two icons of the 190-hp era.

The Eifel fog is still drifting through the pine trees of the Nordschleife as the battle between two 190-hp sedans comes to life. It is 1998, a golden era in which supremacy is decided by two opposing engineering philosophies. On one side stands the Audi A4 B5 2.8 V6 Quattro, featuring all-wheel drive and its iconic five-valve-per-cylinder engine. On the other is the Alfa Romeo 156 2.5 V6, driven by the noble Busso V6 and powered through the front wheels.

The German “original sin”

The stopwatch starts, and the A4 Quattro launches first. It takes only a few corners to reveal the German car’s “original sin”: the large 2.8-litre V6 is mounted longitudinally, hanging ahead of the front axle. Combined with the weight of the Torsen drivetrain, this architecture pushes curb weight to around 1,400 kg. The front end suffers from chronic understeer, and rapid direction changes highlight a noticeable pendulum effect. Quattro traction delivers excellent grip on corner exits, but through the technical sections of the Ring the A4 feels heavy and demands constant steering corrections.

A finely honed blade

Stepping into the 156 is a genuine culture shock. At Flugplatz, the driver suddenly feels as though he is holding a finely honed blade. The steering is exceptionally quick and direct. The secret behind this precision lies in the race-derived double-wishbone front suspension, which minimises torque steer and keeps the nose firmly planted on the ideal racing line.

In the tighter sections, the sophisticated rear MacPherson suspension takes centre stage. Thanks to specially engineered compliance bushings, the rear axle becomes self-steering. The effect virtually eliminates understeer and launches the car toward the next apex with an agility unknown to its rival, while the 2.5-litre Busso sings its metallic symphony all the way to 7,000 rpm.

Displacement strikes back

The 20.6 kilometres of the Nordschleife partially restore balance through sheer pulling power. In the tight sections and the fast bends of Schwedenkreuz, the Alfa 156 capitalises on its superior chassis and nearly 100 kg weight advantage, pulling away from the Audi. Yet on the brutal climbs toward Kesselchen, the German 2.8-litre V6’s 280 Nm of torque demonstrates the benefits of greater displacement over the Italian engine’s 218 Nm. The A4 Quattro claws back ground before the final Döttinger Höhe straight, where both cars settle at approximately 230 km/h.

The verdict

At the imaginary finish line, the verdict is clear: the Alfa Romeo 156 stops the clock at 8 minutes and 46 seconds, while the Audi A4 Quattro crosses the line five seconds later, at 8 minutes and 51 seconds.

The addition of a Torsen limited-slip differential — such as Alfa’s famous Q2 setup — would have eliminated inside-wheel spin on the uphill sections. Fully exploiting the double-wishbone front suspension, the 156 could have shaved another 4–5 seconds off its lap, extending its advantage over the Audi to roughly 10 seconds.

The Nürburgring’s verdict appears crystal clear. The Audi A4 Quattro can truly exploit its strengths only under dark skies and on slippery pavement. On a dry track, the Alfa Romeo 156 2.5 V6 prevails both on the stopwatch and in terms of pure driving emotion, cementing its place as the undisputed handling queen of its era.

Cuore Sportivo — because numbers alone never made anyone fall in love with a car.