Rent a car from Thrifty Car Rental when you arrive at Gold Coast Airport and you receive a Thrifty Holiday Passport which contains many offers. The best ones are to the amusement parks. I'll list a few below:
Movie World: Buy 1 get 1 free. Regular Adult price $71.95 now gets you 2 adult tickets.
Sea World: Buy 1 get 1 free.
Wet n Wild: Buy 1 get 1 free.
10 % off Multi-Amusement Park "Fun Pass" or "Super Pass"
Australian Outback Spectacular: Get 10% off 1 ticket.
Currumbin Wildlife Sanctuary: 20% of day admission.
There are many others. Too many to list.
You do need to show your car key tag to prove you have rented a car.
Amusement park offer was much better than any other I was going to use eg Entertainment Book offer: 15% off tickets which would have been about $120 for 2 people.
Image shows Sea World Coupon, but there is 1 coupon for each offer. Coupons say expiry is 31/1/2012
Avis may have similar offer but for Dreamworld.
i have one of these too. I actually found it and bcos i didnt rent avis i could use some of the vouchers as you had to show your key tag. Offers are good