Why McLaren is the only Mercedes team without the latest power unit at Silverstone

While Audi and Ferrari introduced their first ADUO upgrades of the season in Barcelona and Spielberg respectively, Mercedes also arrived in Austria with a new power unit specification.<br>In Mercedes' case, however, it was not an ADUO step but a reliability upgrade following the numerous retirements earlier this season, with Kimi Antonelli's DNF in Barcelona being the most recent example for the ...<a class='more' href='https://www.autosport.com/f1/news/why-mclaren-wont-have-mercedes-new-power-unit-for-f1-british-grand-prix/10835889/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=uk'>Keep reading</a>