LEWIS HAMILTON faces a massive headache if he is to fight Max Verstappen for victory in Bahrain this weekend – in more ways than one. It comes after Mercedes warned that their new car for this season was not quick enough. But that is only part of the problem as both Hamilton and George Russell are suffering from “porpoising” causing their car to bounce violently up and down at high speed. It is caused when the downforce pushes the car down but when it gets too low, it stalls the airflow under the car, lifting the car back up again. Not only does that cause discomfort for the drivers, but it also limits the top speed of the car. We have carried that on from the test into FP1 so continuing to do experiments.

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