I'm a girl and U love my 33 gtst. Very reliable car cheap to run. I dont think you'd need to consider adjusting power so she could drive it (I'm tiny and I dont have a problem with mine). Even though they have a fair bit of power, they still stick to the road and are very easy to control (even sideways and on full boost).
You're height shouldn't be a prob as long as your not in the back seat!
bri33sta has a point though - other guys wont be able to keep away from her.