I thought S2 only had two stage DSC unlike the S1, but I was autocrossing today and tried holding DSC button until the slippery light and DSC OFF both show up. the car performs totally differently. with everything off, the tail is much happy even sliding out under hard braking. 2nd gear I was sliding beautifully.

 

umm.. thats no different than the S1 dunno why you thought it was

and its not stages of DSC, its DSC and TCS

and sliding doesnt seem a functional part of autocross

 

well the manual says its a malfunction detection system when you hold it for more than 5 secs. I think they say that just to make the owner not crash the car.

trail braking into the corner
sliding helps aiming the corner

 

Not to mention its Fun, isnt that what owning/racing our cars is about ?

 

What does holding it down for 5 seconds give you? I can just press it off and then do donuts. Is there still some stability control when I do that?

 

yep, there still is.
the biggest difference is when you hold down 5 sec to turn it completely off, the car is very easy to oversteer if you give it a lot of gas or trailbraking.
if you just press it, you can do donuts at but at faster speeds I think the computer still has stability control.

 

I have R3
I live in Turkey my city my test was 4100 feet 77 fahrenheit
I press dsc off button
I launch 5000 RMP 0-60 mph my best 7.4 with G-tech
I check G-tech info gear change it takes 0.8 second
Technical details for S1 0-60 mph 5.9 second. for my car look like imposible
Is it normal? problem is altitude , temperature , press 5 second DSC+TSC or some another?

 

Im sure they did 7000rpm dump.