While I havent done it myself, I have also looked into it, the vinyl can be heated and stretched, and should be covered in soapy water so it can be pulled into shape.
There are guys who can do it properly for you, but they charge a fortune.
I will add the full vinyl wrapped cars generally look good from a far, but up close not so good.
I decided not to do the whole car, but key points to set the car off