Actually it was stated that if the Model 3 was lighter in weight.....The tires would have less traction.
Traction control would software limit the slip thereby making the car slower. <---- That's a statement my Tesla.
I'm actually loosing quickness "right now" because I don't have the 10" tires on the rear ( which are heavier ). I put the 10 inch tires on my car this summer in Joliet and my 0-60 times were .3 seconds faster because there was no slip at all.
So....that's why I kept/keep saying that a lighter car is not always necessarily quicker.
What matters most is "where the weight is" and what its function is.
The dragster spoiler weighs about 200 pounds however the dragster would be well over a second slower in a quarter mile race.
Yes, that's why Formula 1 cars that weigh 1,616 lbs (with driver) are so slow.
10" tires don't have better traction because they are heavier, it's because they have a bigger contact patch.