The stability control is in all trim of the Micra, from the cheapest S to the more expensive SR. It's written in their brochure.
Of course, stability will not do any miracle if you have bad winter tire and it's sliperry. So to have good control it is still required to have good snow tires. I am guessing that stability will not do much if the tires are not good.
The Nissan Safety ShieldŽ technologies are a comprehensive approach
to safety that guides the engineering and development of every vehicle
Whether you need to hit the brakes hard or manoeuvre around an
unexpected obstacle, these standard technologies help you respond
to a potentially harmful situation.
Vehicle Dynamic Control helps you maintain your steered path.
Traction Control System helps reduce wheelspin in low-traction situations.
Anti-lock Braking System helps you maintain steering control around
obstacles while braking heavily.
Electronic Brake force Distribution sends extra force to the rear brakes
when you have additional weight of passengers or cargo in the back.
Brake Assist helps apply maximum braking force if it detects hard braking
and senses you are in an emergency situation.