GoGet are offering a special deal through Debit MasterCard Rewards (but available to anyone) to sign up to their GoRewards car share plan. The first year membership fee is waived (usually $99) and rental costs start from $6.55 per hour plus 40c per kilometre or $74 per day with 150 kilometres included. If the special deal doesn't automatically apply, use the promo code "MASTER" on the payment page. I believe this plan only allows for one driver but I could be wrong. Please note that a $100 pre-authorisation will be placed on your card.
The closest plan to compare this deal with would be the GoFrequent plan, which has a $30 per month subscription fee, which gives you rates from $6.35 per hour + $0.40/km or $74/day including 150km but up to 4 drivers can be on the account, with a $25 joining fee per driver and a $250 card pre-authorisation.
the day rate seems expensive? cheaper to rent a car from budget?