Blighted by problems in recent races, Renault's F1 chief Cyril Abiteboul says he felt a 'bit bitter' as they have been forced to give up speed in favour of reliability. Renault have suffered a spate of reliability issues in recent races, which have effected both the works team and their customers. As such they were forced to turn down their engines in order to focus on reliability. Red Bull team boss Christian Horner revealed that his team were as much as 'a couple of tenths' down on pace in the Brazilian GP as they 'ran pretty safe on engines.' And that is something that Abiteboul concedes is not ideal. 'We knew we were in a position where we had to sacrifice a bit of performance in order...
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