Posted: Tue Feb 25, 2020 4:57pm
You can hire a car for as little as £2 per day (don't use Goldcar or Interrent though), but most companies have a maximum of 30 days rentals, after which you have to return the car to be checked over. Also ensure that you rent with 'unlimited mileage' if you're thinking of driving a lot, as most have a limit on mileage and the per km charge for going over soon mounts up. I have a year round excess cover policy for around £60pa (icarinsurance.com) which is useful for car hire, but this may not be valid for long term rentals, so worth checking, otherwise any savings in car hire may be eaten up in insurance premiums.
Anecdotally, the used car market in Spain is less developed than the UK as it's less common for people to have company cars, car fleets, etc. that feed the used car market. The main feed are ex- hire cars, which can take a hammering, so be careful if looking to buy one with that history.
Leasing is available via the major manufacturers and also via banks - but I have no experience of this.
Maybe as you suggest, hire for the first few weeks / months until you find the best option...