by ex-Gooserider » 21 Oct 2011, 06:27
Ditto - biggest factor is her actual abilities and thus the level of adaptation she needs... In theory the minimum would be a car with an automatic transmission, and a throttle / brake control (approx $1-300) and a "spinner knob" on the steering wheel ($20-100).
It may also be desirable to get some way to access the "secondary controls" (turn signals, hi/lo beams, wipers, cruise control, and so forth - anything you need to reach while driving) They make a variety of units that mount a transmitter to the spinner knob and a receiver in the dash that puts the controls at your fingertips (although often somewhat less flexibly) These are fairly expensive and take a good bit of skill to install as they have to be spliced into the car's wiring harness.
On the high end there are systems for "reduced effort" steering, and other very sophisticated "drive by wire" systems that can cost hundreds of thousands of dollars.
Another concern is how does she plan on getting into and out of the car, and what does she do with any mobility devices that she might be using.
My basic recommendation is that she should contact her nearest rehabilitation hospital, and ask them about places that do "adaptive driving" training and evaluations. Then make arrangements to have a professional evaluation done of exactly what her needs are to enable her to drive safely and comfortably.
ex-Gooserider