What is the maximum rental period? In many cases the maximum rental period is 28 days. If you require the vehicle for longer than this then please contact us. Related articles Can I choose the model of the car? Can I extend my booking once I have picked up the car? What happens if I go to collect my car later than the time on my voucher? I haven’t received a confirmation email. What should I do? Why have I been charged by the car hire company?