Variation of the drive concept from Front Wheel Drive to Rear Wheel Drive
→It has already been mentioned before that the driving forces required to overcome rolling resistance and aerodynamic drag reduce the side force capability on the driven axle
→As lateral acceleration increases, the driving forces reduce the possibility of transferring side forces, which has to be compensated by increasing the side slip angle.
→This means that as lateral acceleration increases, side forces increase, along with an increase of longitudinal forces resulting from an increased rolling resistance, implying a reduction of side slip stiffness. Changing loads also intensify the process.
→This implies a FWD vehicle increasingly tends to understeer until the limits are reached.
→An RWD vehicle tuned for understeer by suitable measures could experience a reversal of the steering behaviour from understeer to oversteer.