。
She can drive a car.
Literal
She [topic-は] car [possessive-の] driving [subject-が] can-do.
Japanese has two ways to say 'can drive': the synthetic 運転できる (verbalized noun + できる) and this analytic 運転ができる, in which 運転 stays a noun and できる takes the slot. Both mean the same thing; the analytic version is slightly more emphatic and treats 運転 as the topic-skill in its own right. Note that the thing you can do is marked with が, not を — the standard particle for the object of potential.