His, that is about to leave his post in Renault as Director of Development at the engine division, has been working for Renault non-stop since 1988.
His recently declared in an interview with a newspaper that the main reason of his departure was differences with Renault F1 Managing Director Flavio Briatore.
Briatore announced yesterday the decision of the team to change its controversial underpowered wide angle engine for a more conventional engine "architecture".