
Rast was due to continue his relationship with Audi for a number of years and already had a deal in place for the 2023 season, but was released from contract to pursue other opportunities following the Ingolstadt-based marque’s decision to scrap the LMDh project that he was leading.
The 35-year-old will now compete with BMW in 2023, while also returning to Formula E with McLaren after a single full season with Audi in 2020-21.