If you are an amputee and you want to drive a car, it might be possible with or without adaptive driving equipment being installed in your vehicle. Whether or not you would be required to use adaptive equipment would depend on many variables, including: your overall physical and mental status, your functional level with your prosthesis and your level of amputation(s) and the side(s) they are on. The key is that you need to be able to demonstrate that you can operate your vehicle safely when taking your driver’s test.
If your lower-extremity (L-E) amputation is on your left side and you have no other medical issues that would interfere with safe driving, you might be able to get qualified to drive without needing adaptive equipment. If your L-E amputation was on the right side, you might need to have adaptive equipment installed in your vehicle to make it safe to operate. Hand controls that can be retrofitted to cars are a typical solution to the problem of not having good foot control with your prosthesis.It will take some investigating on your part to determine the steps you would need to go through if you have the desire to drive while wearing your prosthesis. It is not an easy process and there will be costs involved for both training and equipment purchase and installation, and typically these types of costs are not covered by insurance.
Below are a few links to organizations and information that might be helpful. (Please note, these are not endorsements)