Spot on moggie,
Whatever you do bring a car (or a motorbike like me - even better in the sun
). You cannot buy a banger here until you get residency in Spain - that whole process is looked after by the college but takes months and months due to v.speedy Spanish civil service.
If you canīt rustle up the money for a car on your own, try and get something together with one or two of your future classmates in the UK if you decide on Jerez. Apart from just nipping down the shops, there are the miles and miles of beaches, Seville, superb mountainy bits and generally bloody brilliant part of the world to visit on your days off.