There may be a lot of things that you take for granted. When you drive, vehicles are designed to use the right foot for the gas and the brake. However, if you have a mobility issue that prevents you from using your right foot, there needs to be a left foot accelerator.
Vehicles can have a few different features.
Removable Gas Pedal
One of the first things to consider is a removal gas pedal. it will attach to the pedal so that you can use your left foot to work the gas. The benefit of it being removal is that you can share the vehicle with someone who doesn't need this feature. It will also eliminate the need to spend a lot of money in installing something that is a more permanent fixture.
If you require a left foot pedal, it is likely that you have mobility issues due to the lack of function from your right foot. Having a wheelchair accessible vehicle will make it easier for you to get in and out. There are ramps that can be used so that you can simply wheel yourself down
There are various hand controls that can be used in your vehicle, too. it will make it easier for you to accelerate or brake. Having hand controls may be what's needed to help you when you lack mobility in certain areas.
Ultimately, you have to look at buying a vehicle that will give you the mobility that you desire. Being able to drive can be a great freedom to have. If you haven't had the vehicle that has allowed you to drive in the past, it's time to start reviewing the features that you need to have.