I don't profess to be the expert on where what matters (I'm only an EE). I'm only paraphrasing those who designed the car and sharing it with this forum.somewhat centrally located
Remember, however, that the Roadster has a 60:40 weight distribution, not the ~50:50 of the S and subsequent Tesla cars.
Perhaps 200# (~10% of car mass) is insignificant. Maybe not.
They may have been thinking of something closer to 500# reduction (~50% of battery mass, ~20% of vehicle mass).
Further indication of the sensitivity of the tuning of the Roadster.What do cheap tires have to do with the topic?
. . . all just food for thought and consideration. This may all be irrelevant, however, one should be sure before candidly throwing around how 200# savings might be all good.