There's never a limit on how far you can drive your Zipcar (Roundtrip and Flex), but there is a limit on how many of those miles are covered for free.
Most bookings come with up to 60 free miles included per 24-hour period, with 10 additional miles for each additional hour (until up to 60 miles is reached per 24-hour period).
All additional mileage will be billed at £0.29/mile upon completion of your trip.
Keep In Mind
Pay-Per-Mile cars do not include free mileage as we recommend them for shorter trips