a new yaw-rate sensor, which detects the rate of drift in a corner 50 times per second, for this control. Using the sensor's data, the STi adjusts the torque split between front and rear axles between 35/65 per cent to 50/50. The adjustment is ultra-quick, too, thanks to a limited-slip front differential which reacts faster and more progressively. So the STi can both turn into a bend as if its life depends on it, and feel stable once in it.

The newcomer's other piece of electronic trickery is the Driver Controlled Centre Differential, or DCCD for short. This overrides the yaw sensor and lets you set your own drive split, using a thumbwheel mounted next to the handbrake.