Rentalcars.com is a major global booking platform and aggregator operated by Booking.com Transport Limited, connecting users with car rental deals in over 160 countries. The service facilitates comparison of major brands and generally includes insurance, such as Collision Damage Waiver, while offering 48-hour free cancellation on most bookings. For more information, visit Rentalcars.com . Help and Support - Rentalcars.com