Fifty years after its introduction, Audi’s five-cylinder deserves a future. Auditography’s film, Speak Up for the 5-Cylinder — A Film to Save an Iconic Engine, makes that case and asks the people who care about it to be heard. We agree with the appeal. Few components have contributed as much to the identity of a modern automotive brand, and its value deserves consideration beyond the production volumes of the cars it currently powers.
We shared the film when it appeared in September. Its message warrants a more detailed look, particularly because the engine’s future remains unresolved. There are reasons to believe it could continue, but keeping it in production will require investment and people within Volkswagen Group willing to make the case for that investment.
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THE ENGINE THAT HELPED BUILD MODERN AUDI
Audi’s transformation into a global luxury brand was an extraordinary achievement. Its corporate lineage includes the affordable DKW cars that sustained Auto Union’s postwar recovery. And while Audi itself had occupied a slightly higher market position before the war, the modern brand’s real ascent to premium stature required a gathering of momentum through engineering in order to provide buyers with a tangible reason to reconsider its standing and ascendancy following its postwar return.
The five-cylinder was central to that effort. Introduced in the second-generation Audi 100 in 1976, with customer deliveries beginning in March 1977, it supported a deliberate move upmarket. Turbocharging followed in the Audi 200 5T in 1979, then the combination of a turbocharged five-cylinder and permanent quattro all-wheel drive in 1980. Together, they supplied the performance and technical distinction that helped change perceptions of Audi.
Rallying made that combination famous. Pikes Peak and American circuit racing extended its reputation, while road cars brought the association into showrooms. The five-cylinder gave Audi something recognizable, credible and difficult to confuse with its competitors.
That distinction remains today. Luxury brands ask customers to attach value to their particular approach to building a car. For Audi, the turbocharged five-cylinder became one of the clearest expressions of that approach. Its unconventional configuration was part of the attraction, and its sound made the engineering immediately identifiable.
A COMEBACK THAT ADDED TO THE LEGEND
The original chapter ended in 1997, when Audi phased out its remaining five-cylinder engines in the A6 and S6. The return came in 2009, with a new, transversely mounted 2.5-liter turbocharged direct-injection engine in the TT RS. The RS 3 followed, then the RS Q3 in 2013.
That revival demonstrated how effectively a signature engine could distinguish a modern product. The five-cylinder gave these compact performance cars a character of their own and introduced another generation of buyers to an experience already deeply associated with Audi.
Its 1-2-4-5-3 firing order remains an audible signature. You can recognize the engine without seeing the badge, a quality that becomes increasingly valuable as outright acceleration grows easier for competing manufacturers to deliver.
The RS 3 now carries that responsibility entirely as Audi’s only remaining five-cylinder model. That makes the engine’s future vulnerable to the business case of a relatively narrow product range, even though its significance extends across the brand.
FINDING A BUSINESS CASE FOR CHARACTER
Tighter European emissions requirements have brought that vulnerability into focus. Audi’s leadership has publicly acknowledged the difficulty of justifying the investment required for Euro 7 compliance. Audi Sport has also continued to evaluate ways forward, with Rolf Michl indicating that the engine’s historical significance is understood within the company. A final, publicly confirmed long-term solution remains elusive.
For a Volkswagen Group facing competing demands on its investment budget, a niche engine presents a difficult calculation. Development and certification costs are measurable. The contribution an engine makes to customer loyalty, product desirability and the credibility of a performance brand is harder to capture in a spreadsheet.
Yet those qualities have commercial value even if it is not as easily quantifiable as simple sales volume. The five-cylinder RS 3 is a core authenticator that gives current and prospective owners a specific reason to want an Audi. Especially in an era where there is no R8 and a Nuvolari costs more than most street level Audi owners’ homes, the RS 3 as a halo product helps establish a connection with people who see their vehicle as more than an appliance or a commodity, and who may carry that attachment into future purchases. For those in the know and keeping count, it’s also the last of the Audi-developed engines at Audi Sport (the 2.9 TFSI and 4.0 TFSI being Porsche-developed engines).
Broadening the engine’s use would appear to offer one route toward a stronger business case. Cupra has already demonstrated its appeal outside Audi with the Formentor VZ5, including a renewed limited-production version announced for 2026. Reports of a five-cylinder Golf R suggest another possible application, although that remains unconfirmed.
Whether the engine could expand to a longitudinal installation in a larger, more luxurious car is interesting to consider, but also conjecture for now. We know Audi did have test mules of the R8 running a 2.5 TFSI at one stage but thus far there’s never been any commercial application sent to production beyond transverse MQB production. Hybridization offers another possibility worth considering, and Audi Sport has publicly left that avenue open. Neither amounts to an approved product program, but both raise a worthwhile question: how much more useful could this engine become if Volkswagen Group centralized more importance on it, approaching its future across a greater number of products and brands?
THERE IS STILL SOMETHING TO SPEAK UP FOR
Our own contacts suggest Cupra could play a role in helping fund the more immediate Euro 7 certification work. We have also heard that, even without that investment, Audi of America intended to continue offering the RS 3 beyond its European availability, at least through the current product’s lifecycle continues. These are indications shared with us, rather than publicly confirmed commitments.
These rumors suggest some runway remains. Continued availability in the United States would give buyers more time with the current car, while shared investment could create possibilities in Europe. Neither, by itself, secures a successor or a lasting place for the five-cylinder in Audi’s lineup.
That is why Auditography’s film deserves attention. It brings the issue back to the people whose enthusiasm gives the engine much of its value. According to Auditography, decision-makers at Audi have been in contact with him and are watching the response. His comments section offers a place to explain what this engine means to the people buying, owning and advocating for these cars.
If, like us, you believe the five-cylinder belongs in Audi’s future, watch the film and leave a thoughtful comment on Auditography’s YouTube channel. Explain why it matters to you, whether it influenced a purchase, or whether its continued availability would bring you back to the brand.
Audi has spent fifty years building meaning into this engine. There is still an opportunity to carry that work forward. This is a place, and a moment, to be heard.
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