Red Bull's chief designer Adrian Newey believes the new engines will present a serious challenge at the start of the 2014 season, particularly concerning reliability. The power units, which encompass two energy systems, must last an average of 4.4 races as each driver will be limited to just five units next year. That, combined with the fact they're completely new, will likely see many retirements at the start of the season and penalties at the end as drivers take on additional units. Newey expects the engines will play a major role in the pecking order. "Certainly the regulation changes are engine-dominated," said the Briton during a press conference on Wednesday. "It's not...
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