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The optimal weight distribution for a RWD car is between 45/55 and 40/60 Front to Rear. Look at any purpose built race car where the chassis is a blank slate and that is what you will find. The rear bias helps with acceleration AND with braking. When you brake weight transfers to the front of the car with the extreme being 100% front. When you start with a rear weight bias the front axle isn't as overloaded under hard braking.
You also what weight concentrated between the axles for a low polar moment of inertia. That is why purpose built race cars a mid-engine.
Purpose built EVs have the benefit of having most of their weight centrally located and low in the chassis.
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