Volkswagen SSP Platform Development Delayed, All-Electric Audi A4 Production Postponed to 2029

According to a report on November 13, 2026, development of Volkswagen's Scalable Systems Platform (SSP) has encountered obstacles, causing the launch of Audi's all-new all-electric A4 to be postponed from the originally planned 2028 to 2029. The vehicle was originally scheduled to enter production at the Ingolstadt plant in Germany and was one of the first models to adopt the SSP platform. Previously, the Volkswagen brand announced the postponement of the ninth-generation all-electric Golf project based on this platform due to cost constraints. Volkswagen unveiled the 800V SSP platform in 2021, aiming to replace the existing 400V MEB and 800V PPE architectures, as well as the MQB, MLB and MSB platforms for combustion-engine vehicles. Under the plan, SSP-based models were supposed to enter production in 2026, with more than 40 million vehicles expected to carry the platform. Currently, SSP's deployment is at least three years behind the original schedule. The delay in SSP development is related to software development problems at CARIAD, Volkswagen Group's software subsidiary. Under the original division of responsibilities, CARIAD was tasked with developing a unified operating system and electronic architecture for SSP and providing technical support for OTA and high-level autonomous driving, with the unified software platform originally planned for delivery in 2025. Volkswagen subsequently revised its development plan, and future models sold outside China will adopt the software and hardware architecture jointly developed by Volkswagen and Rivian. Audi has requested design modifications to the SSP platform to preserve the A4's spatial layout, seating position and interior proportions, including retaining recessed footwells for front and rear passengers rather than adopting a flat floor. Engineers need to rearrange the installation positions and space allocation of the battery and other high-voltage electrical components beneath the passenger cabin. In addition, Audi has requested that the A4 e-tron adopt a 48V electrical system, abandoning the originally planned 12V solution — a change that has forced Volkswagen to modify part of the electronic architecture developed in collaboration with Rivian.