Diesel vehicle registrations have bottomed out in 2025, with a market share of just 5.2% in Spain during the first six months of the year. Diesel engines have practically disappeared from the market, due to a drop in supply—the main car manufacturers are opting for conventional hybrid, plug-in hybrid, or mild hybrid engines as an alternative to diesel engines—and almost nonexistent demand.

Four former Volkswagen executives were sentenced on Monday by a German court for their role in the scandal involving the cover-up of real diesel engine emissions, known as Dieselgate case, which tarnished the carmaker's image and cost it billions of euros.