Renault drivers, Sainz revert to older-spec engines

The two Renault works men, as well as McLaren’s Spanish driver, have all taken five-place grid drops for having run with an upgraded C-spec in Friday practice.
But despite the improvements in reliability and performance from the engine, the French car manufacturer and McLaren removed the power units and fitted their race cars with B-specs overnight.
Renault says that the change is not ...Keep reading