Yes, I think it would be wise
to get the car after you pass you driving test. Imagine, if you
have not pass your driving test, you will not have a licence to
drive. So getting your car before you pass, you will be committing
an offence by driving without a valid driving licence.
But of course, you can still get the car before you pass your
driving test. Having a car does not mean you automatically will be
the driver. You could get the car, then I can drive for you.
Please, I would prefer a BMW X5, the larger X series is not so
nice, and of course, you should also be paying for the petrol
otherwise how can I drive.