Unless you plan to buy a manual tranny car, your wife could go to driving automatics without learning how to do a manual. Although ideally we all should learn how to drive a stick, buying a car with a stick just to learn how to drive a stick isn't a practical reason to buy a car. If she wants to learn how to drive a stick, it might be better to sign up in a driving school.
Anyway, I was searching a couple of days ago for used Ford Focus TDCi and currently they are priced between P600K to P900K depending on the year it was first bought.
Driving the TDCI PS, there is abundant power to accelerate the car from a stop. Driving it at slow speeds (like a traffic crawl), you might find the tranny being a bit rough to drive, seemingly preferring to crawl a bit faster than the traffic's pace. On the open roads like a highway, it's effortless requiring only the lightest of pedal pressures to maintain the speedlimit.
When I first drove the Focus (Hatch) TDCI PS, the suspension was very stiff & hard. It was a test unit. I guess Ford later used softer suspension for the regular production units because the next time I drove a Focus TDCI PS test unit, it gave me a more comfortable ride on normal city roads including the humps, bumps and potholes.