Hi! I'm from Malaysia and I'm coming to Sydney on 09/06/2013-16/06/2013 and was thinking to rent a car in Sydney coz my mum couldn't take the public transport due to her foot injury. We're coming in group of 6 adults, therefore the car that's available is limited. So far I've booked thru vroomvroomvroom but reading the reviews for the car rentals, it kind of make me worry. Many had bad experiences especially on the hidden charges (card being charged extra after few days returning the car). I know no car rentals can give perfect services but can anyone suggest or share your experience? Few years back I've rent a car thru Hertz at Gold Coast and didn't face any problems/no issues. But this time the type of car is not available thru Hertz. Thanks in advance for your comments and ideas.