Nailed it 

Fr lol

Facts

Only on some cars, for 99% of the cars in the game running 0 weight reduction is usually bad lol

...Because the game biases it’s PI to topspeed, so you are losing power/weight versus a car with full weight reduction, because adding power to supplement heavy weight will increase topspeed Essentially, you only benefit topspeed at a cost of handling with similar acceleration

@@Spherz yeah I noticed it with the a class silvia 2000 its too stiff with weight reduction.