Fernando Alonso says Aston Martin needs to get its Formula 1 powertrain under control, as he raises concerns "random downshifts" could trigger crashes at the Monaco Grand Prix.<br>Alonso was noticeably hampered by the problem in qualifying at Miami, ending up 1.2s down on the Q2 cutoff time, as this long-lasting problem became more prominent.<br>The issue is gearbox-related but occurs within the ...<a class='more' href='https://www.autosport.com/f1/news/aston-martins-random-downshifts-leave-alonso-wary-of-monaco-gp-crashes-/10826950/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>