You ask if a family member can apply for a car for you?
Maybe you have a poor credit rating or have low income, or you are young?
The rules are that a family member can apply a car and you can have some use of it if you are insured.
But, the person that applies for a car has the full financial responsibility for it. So, that person needs to apply for the car.
There is a fine line between a husband using a wife's car, and some third party getting a new car by misrepresentation, so everyone must be very careful.