it can be hard to get a rental car when you’re 21 or 22.
most of the companies i’ve encountered (which, admittedly, aren’t too many) either don’t rent their cars to the “young” folk at all, or they have unreasonable surcharges.
in spain, i’ve found two websites that allow drivers from 21 – and they’re pretty cheap, too:
- sungo rentacar and, even cheaper:
- cars4holidays (de) – but on this site, be sure to check the individual company’s terms&conditions for the minimum age.