You can book a cambio car for a minimum of 1 hour and a maximum of 30 consecutive days. In Brussels, the maximum booking duration is 14 days due to the specific Brussels' car-sharing regulations. For certain vehicle types (cargo), the booking duration is limited in all regions. A reservation always starts and ends on the hour (e.g., at 5:00 PM), the half-hour (e.g., at 5:30 PM), or the quarter-hour (e.g., at 5:15 PM or 5:45 PM)..