Quote from Bob Smith :

Understeer/oversteer is defined by the difference in slip angles, regardless of much grip is available at these slip angles. So, let's go through your examples:

...

I'm a bit confused myself on how it all works, but basically slip angles show the current oversteer/understeer, while the difference in traction shows how they are going to change. At least that's how I see it.

Hmm... I think I was using oversteer/understeer to describe a car's characteristics, not a car's situation (as originally defined). I know what you mean perfectly, though.

Let me try it again:

A "gripping oversteery" car has the rear at a higher slip angle before any tyre slides. A "sliding oversteery" car has the rear break traction to slide sooner than the front.

So a car can be both "gripping oversteery" and "sliding understeery", which I *guess* is the characteristic of lower rear tyre pressure.

p.s. I'm HomeboyWu @ RSC

Should we not separately define sliding and gripping oversteer/understeer? Let's say the front's peak grip slip angle is 12 degrees, a lower rear grip peaking at 11 degrees vs. a higher rear grip peaking at 15 degrees. Without sliding, the former gives the same amount of grip at a lower slip angle, hence "gripping understeery". But the former has less max grip so is easier to slide, which makes it "sliding oversteery".

Am I too confusing here?

Quote from tristancliffe :

I measure stuff in lightyears per decade. It's very simple. Most 'everyday' numbers round down to zero (which makes my maths easy). The downside is that I speed in the pitlane a lot. The signs say 80, but when I'm doing 0 I get a penalty... Can anyone fix it for me?

Hmm... what's a unit good for if you can never ever go above 10?