While the hybrid era may not have produced the best racing, nobody can argue that the current units are not among the most amazing technological achievements ever witnessed in the sport. Indeed, having broken the 50 percent thermal efficiency barrier on the dyno for the first time earlier this year, it is widely considered that the Mercedes M08 EQ Power+ is the most efficient racing engine ever. Now, having exceeded 900bhp this year, engine boss Andy Cowell believes the magical 1000bhp barrier will be broken. 'We're close, I'm sure that'll happen at some point,' he told Motorsport.com. Due to the strict limit on fuel-flow, thermal efficiency is in many ways the Holy Grail for engine...
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