Lando Norris is already without one Mercedes PU for this record-breaking season Lando Norris has been placed further on the backfoot for this F1 season after revealing his first Mercedes power unit is 'finished'. The McLaren driver endured a tortuous opening grand prix in Bahrain a fortnight ago as he was forced to pit five times due to a pneumatic issue with the PU before eventually retiring with two laps remaining. Ahead of this weekend's race in Saudi Arabia, Norris' MCL60 has taken on a completely new PU – internal combustion engine, turbocharger, MGU-K and MGU-H – as well as an exhaust system. Norris has revealed the initial PU cannot be salvaged. 'I took a whole new...
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