澳洲6 days trip

Are you joking ? Even you take a domestic flight in travelling all the cities, you can hardly complete the itinerary within 6 days, now you say that you wish to take the trip by self-driving, you're really a superman.......... 。 2 years ago, I also drove all these 4 cities in 3 weeks time (of course I stayed each city 2 or 3 days) I was graduated from UNSW, Sydney.
So far as I can recall:
(driving hours)
1. Melbourne - Sydney - 11 hours
2. Sydney- Gold Coast - 8~9 hours
3. Gold Coast- Brisbane- 1hour
4. Brisbane-Melbourne - over 24 hours
我平均當時行車時速 80kmph，高速公路(expressway)上很多警察捉快車，出動雷射，偽裝，直昇機，仲叻過捉賊。請記著澳洲公路，又長又直，望不到尾，長途駕車易打瞌。安全第一，祝你好運。

haha i dont think that is a good plan too !! or i should say that you dont have enough times to travel each city !!! just visit the city, then leave !! haha