Mario Illien says it is possible tweaks to the current generation of turbo V6 engines can produce a louder sound for formula one. The most controversial aspect of the new ‘power unit' regulations, introduced last year, is their mild tone in comparison to the screaming V8 and V10s of the past. Bernie Ecclestone is still pushing hard for changes, and while some solutions were studied and trialled in 2014, the sport will enter a second season in 2015 with the same quieter sound. But Mario Illien, the famous F1 engine designer who is now working with Renault and Red Bull, has told Germany's Auto Motor und Sport that there are some possible solutions that could make the basic V6 layout...
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