VW built one software unit for every brand — it delayed Porsche and cost the CEO his job

In 2020, Volkswagen chief executive Herbert Diess reorganised the group's software: developers scattered across the brands were consolidated into a single company, Cariad, with the mission of writing one operating system for every Volkswagen Group vehicle — the software answer to Tesla. It was the biggest strategic bet of Diess's tenure.

The code did not arrive on time. The 1.2 software release slipped 16 to 18 weeks in 2023 — on top of earlier delays — holding up two of the group's most important launches, the electric Porsche Macan and the Audi Q6 e-tron. The next-generation 2.0 platform had to be redeveloped from scratch, pushing the group's SSP vehicle architecture back to 2025. Porsche and Audi were selling cars their own parent company could not finish.

The consequences climbed the hierarchy: Cariad's failures were blamed for Diess's own departure in September 2022, and his successor Oliver Blume made fixing the unit a priority. In October 2023 the board approved roughly 2,000 job cuts at Cariad, running through the end of 2025, and the unit's ambitions were scaled back toward partnerships. A company set up to make the group move like one startup ended up making every brand wait on one bottleneck.

Consolidating all brand software into one unit made every delay group-wide: 2,000 jobs cut, Porsche and Audi launches held up, and the CEO who built it lost his job.

One software stack for a dozen brands centralises the talent and the risk together — every delay at Cariad became a delay at Porsche, Audi, Bentley and VW simultaneously.

Software written to the group's common denominator satisfies none of its brands — Porsche's launch schedule and VW's cost structure cannot share a backlog.

The bet required the software to be ready before the cars; when it was not, the group had built factories for vehicles it could not ship.

Shared platforms save money when they work and multiply damage when they don't — if every brand's launch depends on one team's backlog, that team is the single point of failure, not a cost centre.