There is no 'fastest' guy on the grid in equal cars. It's all subjective. With qualifiers, lots of qualifiers.
There is however, fastest guy in HIS car.
You won't find a single racing driver that says oh that other driver is faster than me. They all thin they are the fastest.
Mazepin included.
Closest we can get to equal cars would be between teammates in the same team. But even then the car still play a difference. While the team provide a base car to the drivers, each driver and their crew will set it up as much to the driver's preference as possible within the framework.
Between teammates, we can at least call which one is the quicker one. It is universally accepted that Max is miles ahead of Perez. But if we put those two into a more neutral car that's not designed to lean into any one driver's preference, say a Ferrari or a Mercedes, Max would still come out on top, but not by as much.
Take Ricciardo for example, when he was teammates with Max, they are just about neck and neck. The Red Bull back then wasn't as loose a race car as it is now. And Ricciardo much much prefer to drive a slightly understeering car, or less active rear end, old school. That's not a setup preferred by Max. When Ricciardo got to McLaren, they have a modern new style loose car, that Lando prefers, and Ricciardo is having a hard time adjusting to that. He didn't all of a sudden became a 'bad' driver from switching teams. Ricciardo is famous for his late braking and and tight turn ins, in a loose car he just lose too much control under braking and unable to perform to his fullest.
So even when in 'equal' cars, there will still be qualifiers.
Formula 1 is a combo sport, each driver has to be talked and discussed WITH his car.
But to entertain the original question, say everyone drive Max's Red Bull. Leclerc, Sainz, Norris, Russell, Albon, Hamilton, Alonso all would be extremely close to Max's time, but Max ultimately will come out on top as the fastest simply because the car was tailor made to him. I suspect Lando would come closest, the Leclerc and Sainz and Russell. I have to think Alonso and Hamilton would fall in behind the young guys for sure, first it's the older age difference, another would be Hamilton is sort of old school, he prefers a more stable rear end car.
Send them all the McLaren and Lando might come out on top, simply because the car isn't set up for Max.
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