Depends on the vinyl you chose to wrap the car in, the supplier you get it from. Materials could be £300 for your basic wraps to £2000 for the fancy chrome wraps.
Time depends on how handy you are and how many times you have to start over on a panel and the panel itself, difficult curves/edges will slow you down. For someone beginning I'd say it's about an hour for a fairly simple panel, but maybe I'm just slow.