Stellantis Revives Diesel as EV Sales Slump

Stellantis Resumes Production of Diesel Engines for Small Cars

The news that Stellantis is reviving diesel engines for passenger cars has hit the industry like a bombshell. The announcement, coming after years of official commitment to electric mobility, is interpreted as a forced pivot due to falling sales and pressure from Chinese manufacturers. In Spain, where diesel still represents a significant part of the vehicle fleet, the decision reopens the debate on whether it was a mistake to bury this technology prematurely. Dealerships are breathing easier: they once again have something to offer customers who do not want or cannot afford an electric vehicle.

The Diesel Engine Stellantis Resurrects: What Lies Behind It?

Stellantis has confirmed it will resume producing diesel engines for its compact models, a measure aimed at halting market share losses against Asian competitors. The company, formed by the merger of PSA and FCA, had publicly bet on full electrification, but market reality has weighed more heavily. Analysts note that demand for electric cars has not grown as predicted, especially in Southern Europe, where price remains the main obstacle. Diesel, demonized for years, is once again seen as a bridging solution.

High Electric Vehicle Prices Hinder Transition

Battery costs and lack of charging infrastructure have slowed electric car adoption. A mid-range electric vehicle can cost between €10,000 and €15,000 more than its diesel equivalent today, a difference many buyers are unwilling to absorb. Furthermore, uncertainty about battery lifespan and replacement costs—which can exceed €8,000—generates distrust. In this context, diesel regains appeal for those who drive many kilometers annually.

Is Diesel More Polluting Than Electric?

The pollution debate remains alive. Diesel advocates argue that modern engines, with particulate filters and NOx reduction systems, emit much less than older ones. However, critics point out that diesel still produces nitrogen oxides and fine particles, especially in cities. The European Union has tightened emission standards, but the new Euro 7 regulation could give manufacturers a breather by delaying stricter limits. Stellantis leverages this margin to relaunch its diesel engines.

Impact on Employment and Spanish Industry

Stellantis' decision has a key industrial component. The company's Spanish plants, such as those in Zaragoza and Vigo, rely heavily on combustion engine production. The shift back to diesel could guarantee workload in these factories, which had seen volumes drop due to declining diesel demand. Unions have received the news cautiously but acknowledge it dispels the ghost of temporary layoffs (ERTE). The auxiliary industry also breathes easier: resuming diesel engine manufacturing implies reactivating an entire supply chain.

Market Reaction: Between Relief and Mockery

The news has generated mixed reactions. While some celebrate the return of diesel as a victory for common sense, others see it as a step backward. On social media, ironic comments abound regarding the "scam" of electric mobility and the "joy" of traditional engines. Dealerships, meanwhile, report a resurgence of interest in diesel models, particularly among customers over 50. The question is whether this move will be enough to reverse the trend or if it is just a temporary patch.

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Diesel returns, but it won't be the same. New engines will incorporate cleaner and more efficient technology, although their price will be higher than older models. Stellantis bets on a niche that still moves millions of cars in Europe. It remains to be seen if buyers respond or if, conversely, the shadow of future bans in major cities definitively hinders its resurgence.