To view the CROSS BORDER terms and conditions: At STEP2 of our 3 step online booking process, alongside the car photo of your choice, there is a link entitled “IMPORTANT INFORMATION”. Clicking on this link will open an additional smaller window, with the terms and conditions appertaining to that particular car/supplier. Choose then the "CAR" tab and look under "TRAVEL RESTRICTIONS".
Try a few different suppliers as each supplier/vehicle type may have a different cross border rule.