Adrian Sutil has revealed that Sauber has yet to run its new Ferrari 'power unit' to its full potential as teams continue to find their way in F1's new technical era.Speaking on the eve of the 2014 season's first official practice session, the German – who moved to Sauber from Force India over the winter – conceded that so much time had been spent working on reliability that out-and-out performance had still to be realised.Sauber was able to complete over 2500 laps across the three pre-season tests in Spain and Bahrain, although Sutil and team-mate Esteban Gutierrez sat in the lower reaches of the timesheets at BIC.“It's the first time [coming into a season with so many unknowns] and...
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