My last toy car had no engine oil dipstick, you had to check it from the on board computer and it only read it at idle when it was up to temperature. Now my Toyota truck has no transmission dip stick.
This is and will always be a bad idea to remove dipsticks..
Ok, I get it that they may say that the system is more air-tight to eliminate a potential source of air leaking or combustion by-products leaking back out into the atmosphere..
I am of the idea having pulled probably a thousand dipsticks over my lifetime - most working at my Dad`s gas station and other stations, and then all those from all the vehicles of my own and dozens of friends, strangers, widows, etc..., that we need them..
The best part for me anyway, to be able to have that dipstick is that I can instantly tell if the motor oil or transmission fluid or power steering fluid is bad, really bad, or much much worse than it ever should be, AND I can physically see by the level, how much is actually in that particular pan.., etc., in the engine...
I recall that when BMW first did this to their vehicles, they had a big problem for awhile because the sensors that were supposed to tell you when the levels changed for the worse did not work or worked erratically, etc...
So now, we have to just depend on something to tell us - "Oh, your expensive engine is melting down NOW, because the sensors got confused or something..
Dan F