It's the same for all the top teams though - Perez, Russell and Sainz are all so so drivers...over-the-hill, everything to prove and average respectfully.
Thats quite a harsh assessment. I may give sainz some stick, but it could be that the porposing in the ferrari (the sainz onboard showed how bad it was for the driver) could be the difference between him and leclerc. Also leclerc had some sort of upgrade to his car that dainz didnt. This was mentioned in fp3 without going into specifics. However sainz has made too many mistakes this season, especially as each time you bin the car, the repair bill eats up some of your development budget.
Perez could and would be quicker if the car developed around his driving style i.e. understeer rather than max who prefers a car that oversteers especially in corners where he can correct a snap oversteer and gasly, albion etc struggled to do so. Unfortunately for perez he is a no2 and his goal is to back up max on track and take points off maxs competition. He has to compromise his driving style to do so.
Russell is the future of Mercedes just as leclerc, max, lando are the future of their respective teams.
For all the information F1 gives the armchair fan what we dont get to find out is how a car is reacting for a driver and his driving style around a low/med/high speed corner?
Is it stable under braking and corner entry?
Is it oversteering or understeering?
Is the driver having to wait on purpose before putting the power down so he doesnt light up the rears or tear the rubber on the tyre?
Whats the rotation of the back end of the car like?
Does that particular driver prefer a car with pull rod ot push rod suspension?
Do they have an identical car parts wise to their teammate?
Has their engineers got the setup wrong?
Have the powertrain guys got the wrong engine map on the car for engine braking?
Has the team asked the two drivers to diverge on setup to get different data sets?
There are so many factors at play its crazy, but for us armchair fans it comes down to laptime as to how we judge a driver. Thats the bit of information we see on screen and hear about most. Its a shame we dont get more information but its understandable that the teams want to keep the strengths and weaknesses of their cars a secret.