Sunburst Rally Unrealistic Launching Wheelspin

EDIT: FIxed in 0.16.0.3

Whan launching a vehicle, more weight is distributed to the rear. so an FWD-biased car will spin wheel more than a RWD-biased car.
If you put the rally Sunburst on gravel and launch it you'll notice that there's not that much wheelspin.

The default tuning is 60%front and 40%rear. However if you tune the diff and make in 40%front and 60% rear and you'll get more wheelspin, very strange. Even the front wheels spin faster in that RWD-biased car.
Bug in the Powertrain??

 

Understood, BTW why setting the rally Sunburst 60%front,40%rear? It's too understeery. For keyboard friendliness?

 

It is kind of fake rally car or so I did understood at least, it is just normal Sunburst with rollcage and not full blown rally car so I guess that is why it still has similar power delivery to those AWD cars that have rear wheels lightly assisting front wheels.

I am driving the thing with 60% rear bias though as I just can't get my brain around FWD cars on gravel.

Also my understanding is that Bias is that as base setting, but bias changes all the time when driving, so adjusting brake balance and using brakes differently can lead to different kind of driving experience with left foot braking etc.

60% rear bias with SBR sounds, this thing I like quite a bit, my skills just are not the greatest.

 

At 0.16.0.3 the problem is fixed, but the torque bias is still 60%F 40%R. However when I do time trial in Pikes Peak gravel, I cannot get a significantly faster time using 40%F 60%R than the stock 60%F 40%R dispite the 40%F 60%R is easier to control and it's only 5 seconds faster (11:11 in 4F6R and 11.17 in 6F4R).