Yes, the NDIS can fund vehicle modifications where they're reasonable and necessary for your disability. This is things like hand controls, ramps, hoists or wheelchair restraints.
A couple of practical notes: the NDIS funds modifications to a vehicle, not the vehicle itself (a car is an everyday cost, the changes that make it usable for you are the disability support). Modifications usually need an assessment and quotes before approval.
If getting around independently is one of your goals, vehicle modifications are worth raising at your planning meeting. Email hello@providerchoice.com.au and we can see if you can access it with your current plan.