1. Promotion Code 210538 must be quoted at the time of reservation. 2. Offer available only for rentals commencing between 18th of June 2021 and 31st of December 2021, unless sold out 3. Offer available at all participating Australian Corporate locations. 4. Minimum rental period of  consecutive days applies, for a maximum of One free vehicle class upgrade per hire, for a Maximum rental period of  consecutive days. Upgrades are subject to availability at time of vehicle collection. 5. Upgrade available in Australia on vehicle groups Compact Auto (H) to Intermediate Auto (C), Intermediate Auto (C) to Standard Auto (S), Standard Auto (S) to Compact SUV (G), Compact SUV (G) to Fullsize Auto (D), Fullsize Auto (D) to Intermediate SUV (I), Intermediate SUV (I) to Premium Auto (P) 6. Rental days are based on a twenty-four (24) hour period. 7. A fifty-nine (59) minute grace period is allowed for returns. Returns outside the grace period will be charged up to an extra day rental fee. 8. Offer excludes taxes, fees, optional products and services, fuel, additional charges such as airport taxes and sundry fees and the GST that applies to these charges. 9. This offer may not be combined with any other offer, discount promotion, special offer or coupon. 10. Offer is not applicable on pay now, contract, tours, government or insurance replacement rentals. 11. Hertz standard terms and conditions, driver, rental and credit qualifications in effect at the time and place of rental apply. 12. Age requirements vary dependent on vehicle reserved. 13. Vehicle models may differ and specifications may vary by location. Vehicles can be reserved by car group only and not by particular car model or colour. Fleet subject to change without notice. 14. One way rentals are available between selected locations. Blackout periods may apply please check at time of Reservation 15. Special conditions may apply. Promotional terms and conditions subject to change without notice.