Andrew Shovlin has revealed the reason why Lewis Hamilton was not able to overtake Pierre Gasly at the Emilia Romagna GP.

Hamilton was trying to pass Gasly for P13 for a big part of the race, but after several attempts remained behind the Frenchman. The Mercedes driver finished the race 13th still because of Esteban Ocon’s time penalty.

Shovlin explained that the effect of the DRS train did not let Hamilton make the move.

“It’s the same problem that we had in the Sprint race, when you are in what we are calling a DRS train,” the Mercedes trackside engineering director said in the team’s post-race weekend video.

“Now, the combined effect of the DRS in Imola plus the tow gives you around half a second of advantage to a car that you are following.

“The issue is that, if that car is following another car, and they themselves have DRS, almost all of that advantage is wiped out, and that was principally the issue that Lewis had; that, because Gasly had DRS, they were following almost an identical speed profile down the straight.

“Lewis wasn’t really able to get alongside, and that was why he spent the whole race rather frustratingly stuck in that position.”

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