Originally Posted by celt

In a power limited class, lighter is better in most every case, as all things are bound by gravitational rules when existing on a large mass like earth.

You can argue that reducing rotating mass is more important than static weight. However, reducing both is important. A heavier car takes more energy to push around and greater rotating mass takes more energy to spool up and down. Unless you are operating a gristmill, you want less rotating mass.



Remember, there is a difference between arguing static weight and proper weight bias.

Can anyone give an example in modern car racing where there is a weight maximum rule?