Quote:
MMD said:
If you put the brakes on the car will obviously ONLY use ABS to control wheels rotation to try to regain control. Put brakes on and ZERO power will be applied to any wheel(s)?



As a clarification, ESP selectively applies brakeforce on a particular wheel (outer front wheel for oversteer, inner rear wheel for understeer) to prevent the car from spinning. Due to dynamic load distribution, the inner rear wheel has the lowest amount of weight transferred in cornering (excluding the influence of acceleration), therefore it is much more difficult to diminish understeer. As I mentioned above, this can only work with sufficient friction provided. Hence my above stated question reg. engaged transmission. Further bear in mind that Porsche's ESP system, while being deactivated, reengages under heavy braking.
There are only a few cars that use selective torque application to support this, e.g. the Mitsubishi Lancer with an active rear differential.