Nico Rosberg says Mercedes F1 will endeavour to keep finding new solutions to improve the spectacle of the sport after its much-discussed 'megaphone exhaust' resulted in little noticeable difference to the sound of the cars. Sporting a distinctive 'trumpet-style' instrument on the rear-end of the W05, the feature was intended to amplify the sound of the power units, which have been criticised in 2014 for being too quiet and less distinctive than the previous generation engines. However, the new exhaust would have little effect on the sound of the car, with Mercedes removing it before Rosberg returned to the track for the final afternoon of F1 testing in Spain. Despite this, the German...
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