Formula 1's sporting manager Ross Brawn says he was surprised by several teams' criticism of the sport's recent engine proposal for 2021. After many months of analysis and proactive discussions between Formula 1, the FIA and the teams, a draft of F1's future engine platform was tabled last month. It was a cold reception by the manufacturers however, with Mercedes and Renault believing the substantial changes would inevitably lead to significant development costs, while Ferrari's Sergio Marchionne threatened to pull out of the sport if too much standardization was imbedded into the rules. The manufacturers were also a bit riled by the level of detail associated with the draft proposal...
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