Sebastian Vettel made his feelings about modern-day Formula One clear after his car ground to a halt midway through the Russian Grand Prix.
The four-time world champion, whose car had suffered a failure of the complex MGU-K system, opened his radio channel to say simply: "Bring back the f---ing V12s!"
It was a dig at the six-cylinder V6 turbo engines F1 has had since 2014. Vettel has been an outspoken critic of them from the beginning -- early on in that debut season, he said the muffled sound of the hybrid units was "shit". Before then, Vettel had driven the louder V8 engines since his F1 debut -- those had replaced V10s in 2006.