THE Mustang is no showcase of electronic trickery, relying on basic technology such as anti-lock brakes, a limited-slip differential and a traction control system to get the job done. The switchable, all-speed traction control system was developed specifically for Mustang. When either of the rear pair of shared ABS/traction control sensors detects rear wheel spin, the system will select one or all of three possible electronic strategies in conjunction with brake applications. The engine control can limit torque by retarding the ignition timing, modulating the air/fuel ratio and cutting off cylinders. The engine controls work at all speeds, while brake application will occur at speeds of up to 100km/h. The driver is otherwise expected to have a fair idea of what the car is capable of doing, so there's no dynamic stability control, or corner braking control, nor is there climate control, or satellite navigation. Still, the Mustang is far more sophisticated than its 1960s forebears.